List of Kamen Rider Zi-O characters

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Promotional image of Kamen Rider Zi-O's main cast. From left to right, Woz (Keisuke Watanabe), Geiz Myokoin (Gaku Oshida), Sougo Tokiwa (So Okuno) and Tsukuyomi (Shieri Ohata).

Kamen Rider Zi-O (仮面ライダージオウ, Kamen Raidā Jiō) is a Japanese tokusatsu drama and the 29th entry in the Kamen Rider series. It follows the exploits of Sougo Tokiwa, a young man who, according to visitors from the future, is destined to become the king who will enslave the entire world, and embarks in a quest to change his fate, meeting several other Kamen Riders from the Heisei era along the way.

9-to-5[]

9-to-5 (クジゴジ堂, Kujigojidō) is a clock shop owned by Junichirō Tokiwa that also serves as his and his grandnephew Sougo's home.

Sougo Tokiwa[]

Sougo Tokiwa (常磐 ソウゴ, Tokiwa Sōgo)^[a] is an 18, later 19-year old, graduate of Hikarigamori High School (光ヶ森高等学校, Hikarigamori Kōtō Gakkō) who dreamed of becoming a king after experiencing a series of nightmares in his childhood and being visited by a mysterious figure that entrusted him with the prophecy. After surviving a bus accident when he was nine, Sougo became orphaned and since then lived with his great-uncle at 9-to-5. After meeting Tsukuyomi and Geiz, Sougo learns he will become Ohma Zi-O, a demon king destined to rule the world with an iron fist. Despite being troubled by the possibility he is cursed to become a tyrant, Sougo chooses to continue following his dream while changing his fate, accepting the power to become Kamen Rider Zi-O and declaring that he would become a benevolent demon king instead. Despite Geiz and Tsukuyomi's reservations, Sougo considers them friends and trusts them with his life; asking both of them to kill him should he follow the path to becoming Ohma Zi-O. All the while, Sougo's predecessor Tsukasa Kadoya secretly watches over him to ensure he succeeds in changing his fate.

Originally a visionary high school student prior to his graduation, Sougo develops other strengths along his journey. Due to his observant nature and keen understanding of human behavior, he became a skilled manipulator capable of outsmarting a genius of Kuroto Dan's caliber. In 2019, Sougo develops the ability to subconsciously create alternate futures, which he initially assumed were prophetic dreams of Kamen Riders from White Woz's timeline. Ever since the bus accident, he also gained chronokinesis like the Time Jackers. However, their leader Swartz erased Sougo's memory of it before the latter regains his chronokinetic powers after he becomes Grand Zi-O.

As Swartz commences a convergence of the A.R. Worlds, Tsukuyomi seemingly betrays Sougo and Geiz is killed saving him. In response, an enraged Sougo becomes Kamen Rider Ohma Zi-O (仮面ライダーオーマジオウ, Kamen Raidā Ōma Jiō) to defeat Swartz himself before sacrificing Ohma Zi-O's power to reset the space-time continuum; negating his destiny and undoing Swartz's damage. Due to this, he relives his senior year in 2018 with altered versions of Geiz, Tsukuyomi, and the Time Jackers as his classmates in the new timeline.

During the events of the film Kamen Rider Reiwa: The First Generation, Sougo temporarily regains his Rider powers after he learns of Finis, a Time Jacker who survived his changes to the timeline and swore vengeance against him. Joining forces with Geiz, Tsukuyomi, and Black Woz once more, Sougo enters the World of Zero-One to rescue Kamen Rider Zero-One and his allies; all of whom Finis also attacked as part of their revenge plot.

In the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, Sougo permanently regains his powers while helping Geiz in his fight against a new White Woz, who became Another Diend to become a savior.

In an alternate timeline depicted in the film Kamen Rider Zi-O the Movie: Over Quartzer, Sougo and his friends help Go Shijima preserve Kamen Rider Drive's history after Oda Nobunaga lost the Battle of Nagashino. After going back in time and preventing this event from occurring, Sougo receives the Drive and Mach Ride Watches. However, Black Woz betrays him, taking all of Sougo's Ride Watches and imprisoning him on behalf of the Quartzers. Despite this, Sougo is released by Tsukuyomi and Go and receives the Ohma Zi-O Ride Watch to defeat the Quartzers' leader; an adult version of himself from an alternate timeline. After Sougo defeats his evil counterpart, he is recognized as a king.

In the web-exclusive spin-offs, Rider Time: Kamen Rider Decade vs. Zi-O: The Decade House Death Game and Rider Time: Kamen Rider Zi-O vs. Decade: 7 of Zi-Os!, an alternate universe version of Sougo who became a basketball player becomes trapped in the titular House Death Game and encounters Tsukasa, who was trying to lure the "prime" version of Sougo to the game. The alternative Sougo gives Tsukasa the Saber Ride Watch and asks him to give it to the "prime" Sougo, who is later forced to fight various alternate universe versions of himself.

To transform into Kamen Rider Zi-O, Sougo uses the Ziku-Driver (ジクウドライバー, Jikū Doraibā, Space-Time Driver) belt in conjunction with the Ride Watches (ライドウォッチ, Raido Wotchi). His personal weapon is the Zikan Girade (ジカンギレード, Jikan Girēdo), which has a Ken Mode (ケンモード, Ken Mōdo, Sword Mode) for the Edge of Time Slash (ギリギリスラッシュ, Giri Giri Surasshu) finisher and a Ju Mode (ジュウモード, Jū Mōdo, Gun Mode) for the Sure Sure Shooting (スレスレシューティング, Sure Sure Shūtingu) finisher. He also owns a Time Mazine, a time traveling vehicle given to him by Tsukuyomi that can transform into a humanoid robot, and Woz's Faiz Phone X to communicate with Tsukuyomi and Geiz through time.

• Zi-O (ジオウ, Jiō): Dated 2018, this is Sougo's personal Ride Watch that allows him to transform into Kamen Rider Zi-O and convert his Time Mazine from Vehicle Mode to Battle Mode. His finisher in this form is the Time Break (タイムブレーク, Taimu Burēku).
• Bike (バイク, Baiku): An undated Ride Watch that allows Sougo to summon his personal motorcycle, the Ride Striker (ライドストライカー, Raido Sutoraikā).
• Build (ビルド, Birudo): Dated 2017, this Ride Watch is based on Kamen Rider Build Rabbit Tank Form. It equips Zi-O with the Build Armor (ビルドアーマー, Birudo Āmā), enabling him to channel either the Rabbit Fullbottle's agility capabilities or the Tank Fullbottle's endurance capabilities. He is also armed with a weapon modeled after Build's Drill Crusher known as the Drill Crusher Crusher (ドリルクラッシャークラッシャー, Doriru Kurasshā Kurasshā). Zi-O's finisher in this form is the Vortex Time Break (ボルテックタイムブレーク, Borutekku Taimu Burēku). When used on the Time Mazine, it can assume Build Mode (ビルドモード, Birudo Mōdo).
• Ex-Aid (エグゼイド, Eguzeido): Dated 2016, this Ride Watch is based on Kamen Rider Ex-Aid Action Gamer Level 2. It equips Zi-O with the Ex-Aid Armor (エグゼイドアーマー, Eguzeido Āmā), which enables him to generate a Mighty Action X-themed Game Area with chocolate block-like platforms. He is also armed with a pair of gauntlets modeled after Ex-Aid's Gashacon Breaker known as the Gashacon Breaker Breakers (ガシャコンブレイカーブレイカー, Gashakon Bureikā Bureikā). Zi-O's finisher in this form is the Critical Time Break (クリティカルタイムブレーク, Kuritikaru Taimu Burēku). When used on the Time Mazine, it can assume Ex-Aid Mode (エグゼイドモード, Eguzeido Mōdo).
• Fourze (フォーゼ, Fōze): Dated 2011, this Ride Watch is based on Kamen Rider Fourze Base States. It equips Zi-O with the Fourze Armor (フォーゼアーマー, Fōze Āmā), which enables him to fly by transforming into a Rocket Mode (ロケットモード, Roketto Mōdo). He is also armed with a pair of weapons modeled after Fourze's Rocket Module known as the Booster Modules (ブースターモジュール, Būsutā Mojūru). Zi-O's finisher in this form is the Limit Time Break (リミットタイムブレーク, Rimitto Taimu Burēku). If used in the Zikan Girade while in Ju Mode, he is capable of launching rockets.
• OOO (オーズ, Ōzu): Dated 2010, this Ride Watch is based on Kamen Rider OOO Tatoba Combo. It equips Zi-O with the OOO Armor (オーズアーマー, Ōzu Āmā), granting him the Tora Claw Z (トラクローZ, Tora Kurō Zetto) on his right hand and a pair of Batta Springers (バッタスプリンガー, Batta Supuringā) on his legs for enhanced jumping capabilities. Zi-O's finisher in this form is the Scanning Time Break (スキャニングタイムブレーク, Sukyaningu Taimu Burēku). When used on the Time Mazine, it can assume OOO Mode (オーズモード, Ōzu Mōdo).
  • Taka (タカ, Hawk): A Ride Gadget of unknown origin that transforms into the Taka Watchroid (タカウォッチロイド, Taka Wotchiroido), which is based on the Kougami Foundation's Taka Candroid. Being a sentient Ride Watch, it is used for reconnaissance missions.
  • Tajadol Combo (タジャドルコンボ, Tajadoru Konbo): Dated 2010, this Ride Watch is based on Kamen Rider OOO Tajadol Combo. When used on the Time Mazine, it can assume Tajadol Combo Mode (タジャドルコンボモード, Tajadoru Konbo Mōdo) and participate in aerial combat. Its finisher is the Giga Scan Time Break (ギガスキャンタイムブレーク, Giga Sukyan Taimu Burēku).
• Gaim (鎧武, Gaimu): Dated 2013, this Ride Watch is based on Kamen Rider Gaim Orange Arms. It equips Zi-O with the Gaim Armor (鎧武アーマー, Gaimu Āmā), which grants him four Daidaimaru Z (大橙丸Z, Daidaimaru Zetto, Great Orange Circle Z) swords themed after Gaim's Daidaimaru for melee combat and the Lockseed Shoulders (ロックシードショルダー, Rokkushīdo Shorudā) that allow him to open Crack portals. Zi-O's finisher in this form is the Squash Time Break (スカッシュタイムブレーク, Sukasshu Taimu Burēku). If used in the Zikan Girade while in Ken Mode, he gains increased slicing capabilities.
  • Kodama (コダマ, Little Ball): A Ride Gadget that can be used to communicate across different dimensions and unfolds into the Kodama Suika Arms (コダマスイカアームズ, Kodama Suika Āmuzu, Little Ball Watermelon Arms), a miniature drone based on the Suika Arms attack drone used by the Yggdrasill Corporation and Armored Riders.
• W (ダブル, Daburu): Dated 2009, this Ride Watch is based on Kamen Rider W Cyclone Joker. It equips Zi-O with the W Armor (W (ダブル) アーマー, Daburu Āmā), granting him abilities similar to W's powers. Zi-O's finisher in this form is the Maximum Time Break (マキシマムタイムブレーク, Makushimamu Taimu Burēku). If used in the Zikan Girade while in Ju Mode, he is capable of firing green air blasts at the enemy.
• Kuuga (クウガ, Kūga): Dated 2000, this Ride Watch is based on Kamen Rider Kuuga Mighty Form. It equips Zi-O with the Kuuga Armor (クウガアーマー, Kūga Āmā), granting him abilities similar to Kuuga's powers. Zi-O's finisher in this form is the Mighty Time Break (マイティタイムブレーク, Maiti Taimu Burēku). When used on the Time Mazine, it can assume Kuuga Mode (クウガモード, Kūga Mōdo).
• Ryuki (龍騎, Ryūki): Dated 2002, this Ride Watch is based on Kamen Rider Ryuki. If used in the Ride Heisaber, Zi-O is capable of performing flaming slash attacks.
• Blade (ブレイド, Bureido): Dated 2004, this Ride Watch is based on Kamen Rider Blade Ace Form.
  • Chalice (カリス, Karisu): Dated 2004, this Ride Watch is based on Kamen Rider Chalice.
• Agito (アギト): Dated 2001, this Ride Watch is based on Kamen Rider Agito Ground Form. It was originally obtained by Heure when he stole Agito's powers from Shouichi Tsugami, but the latter regains it and gives it to Sougo.
• Hibiki (響鬼): Dated 2005, this Ride Watch is based on Kamen Rider Hibiki.
• Kiva (キバ, Kiba): Dated 2008, this Ride Watch is based on Kamen Rider Kiva.
• Kabuto (カブト): Dated 2006, this Ride Watch is based on Kamen Rider Kabuto Rider Form and was originally the Kabuto Zecter before it transformed into the Ride Watch.
• Den-O (電王, Den'ō): Dated 2007, this Ride Watch is based on Kamen Rider Den-O Sword Form.
• Mach (マッハ, Mahha): Dated 2014, this Ride Watch is based on Kamen Rider Mach. This Ride Watch appears exclusively in the film Over Quartzer.
• Saber (セイバー, Seibā): Dated 2020, this Ride Watch is based on Kamen Rider Saber Brave Dragon. This Ride Watch was originally owned by an alternate universe version of Sougo before he gives it to the "prime" Sougo through Tsukasa. This Ride Watch appears exclusively in Kamen Rider Decade vs. Zi-O: The Decade House Death Game.

Along his journey, Sougo acquires the Decade (ディケイド, Dikeido) Ride Watch from Tsukasa through Geiz. Dated 2009, this Ride Watch equips Zi-O with the Decade Armor (ディケイドアーマー, Dikeido Āmā), which allows him to augment his form with one of his Rider predecessors' power-up forms by combining the Decade Ride Watch with their corresponding Ride Watch. He is also armed with the Ride Heisaber (ライドヘイセイバー, Raido Heiseibā), which allows him to utilize any of the previous 19 Heisei Kamen Riders' powers without tapping into their Ride Watches for the Dual Time Break (デュアルタイムブレーク, Dyuaru Taimu Burēku) attack as well as perform one of two finishers: Scramble Time Break (スクランブルタイムブレーク, Sukuranburu Taimu Burēku) or Ultimate Time Break (アルティメットタイムブレーク, Arutimetto Taimu Burēku). This form can perform one of two finishers: Attack Time Break (アタックタイムブレーク, Atakku Taimu Burēku) or Final Attack Time Break (ファイナルアタックタイムブレーク, Fainaru Atakku Taimu Burēku).

• Build Form (ビルドフォーム, Birudo Fōmu): A form accessed by combining the Decade and Build Ride Watches, based on Kamen Rider Build Rabbit Tank Sparkling Form.
• Ghost Form (ゴーストフォーム, Gōsuto Fōmu): A form accessed by combining the Decade and Ghost Watches, based on Kamen Rider Ghost Grateful Damashii.
• Ex-Aid Form (エグゼイドフォーム, Eguzeido Fōmu): A form accessed by combining the Decade and Ex-Aid Ride Watches, based on Kamen Rider Ex-Aid Double Action Gamer Level XX. This form splits Zi-O into two different Kamen Riders: Ex-Aid Form L, an azure-colored form who wields the Zikan Girade, and Ex-Aid Form R, an orange-colored form who wields the Ride Heisaber.
• OOO Form (オーズフォーム, Ōzu Fōmu): A form accessed by combining the Decade and OOO Ride Watches, based on Kamen Rider OOO Tajadol Combo.
• Ryuki Form (龍騎フォーム, Ryūki Fōmu): A form accessed by combining the Decade and Ryuki Ride Watches, based on Kamen Rider Ryuki Survive. This form appears exclusively in the web series spin-off Rider Time: Kamen Rider Ryuki.
• Saber Form (セイバーフォーム, Seibā Fōmu): A form accessed by combining the Decade and Saber Ride Watches, based on Kamen Rider Saber Brave Dragon. This form appears exclusively in Rider Time: Kamen Rider Zi-O vs. Decade: 7 of Zi-Os!.^[1]

While battling the Another Rider, Another Ryuga, and his Mirror World counterpart, Sougo gains the Zi-O Ride Watch Two (ジオウライドウォッチII, Jiō Raido Wotchi Tsū), which allows him to transform into Kamen Rider Zi-O Two (仮面ライダージオウII, Kamen Raidā Jiō Tsū). In this form, Zi-O gains limited chronokinesis as well as precognitive sight, which allows him to see seconds into the future. He is also armed with the Saikyo Girade (サイキョーギレード, Saikyō Girēdo) sword, which can combine with the Zikan Girade into the Saikyo Zikan Girade (サイキョージカンギレード, Saikyō Jikan Girēdo) for him to perform the King Edge of Time Slash (キングギリギリスラッシュ, Kingu Giri Giri Surasshu) finisher. Zi-O's finisher in this form is the Twice Time Break (トゥワイスタイムブレーク, Tuwaisu Taimu Burēku).

While battling Another Blade, Sougo receives the Zi-O Trinity Ride Watch (ジオウトリニティライドウォッチ, Jiō Toriniti Raido Wotchi), which allows him to fuse with Geiz and Black Woz to become Kamen Rider Zi-O Trinity (仮面ライダージオウトリニティ, Kamen Raidā Jiō Toriniti). In this form, the trio can utilize all of their powers and weapons at once. This form can perform one of three finishers: Solo Time Break (ソロタイムブレーク, Soro Taimu Burēku), Duo Time Break Burst (デュオタイムブレークバースト, Dyuo Taimu Burēku Bāsuto), or Trinity Time Break Burst Explosion (トリニティタイムブレークバーストエクスプロージョン, Toriniti Taimu Burēku Bāsuto Ekusupurōjon). During the events of the Kamen Rider Zi-O tie-in novel of the same name, Sougo receives a variation of the Zi-O Trinity Ride Watch that allows him to become Zi-O Trinity Version Geiz & Tsukuyomi (ジオウトリニティバージョン・ゲイツ&ツクヨミ, Jiō Toriniti Bājon Geitsu Ando Tsukuyomi).

Once he acquires all 19 of his Rider predecessors' Ride Watches, Sougo receives the Grand Zi-O Ride Watch (グランドジオウライドウォッチ, Gurando Jiō Raido Wotchi), which allows him to become Kamen Rider Grand Zi-O (仮面ライダーグランドジオウ, Kamen Raidā Gurando Jiō). In this form, he retains his chronokinesis and gains the ability to summon any of his predecessors from their active timeline to fight by his side and utilize their weapons along with his own. Zi-O's finisher in this form is the All Twenty Time Break (オールトゥエンティタイムブレーク, Ōru Tuenti Taimu Burēku).

During the events of Over Quartzer, Sougo obtains a Ride Watch based on Ohma Zi-O, which allows him to transform into Zi-O Ohma Form (オーマフォーム, Ōma Fōmu) and utilize the vast power of his future self. Zi-O's finisher in this form is the King Time Break (キングタイムブレーク, Kingu Taimu Burēiku).

During his final battle against Swartz, Sougo converts his Ziku-Driver into the Ohma Zi-O Driver, acquiring the ability to transform into Kamen Rider Ohma Zi-O and become powerful enough to destroy enemies with a single attack. His finisher is the Ohma Zi-O Hissatsugeki (逢魔時王必殺撃, Ōma Jiō Hissatsugeki, Ohma Zi-O Finishing Attack).

In addition to his own Ride Watches, Sougo is capable of using Geiz's Ride Watches.

• Ghost: Dated 2015, this Ride Watch is based on Kamen Rider Ghost Ore Damashii. Sougo originally uses Geiz's Ghost Ride Watch before Decade neutralizes it and Sougo acquires his own version. The Ghost Ride Watch equips Zi-O with the Ghost Armor, which enables him to summon Ghost's Hoodie Ghosts as reinforcements. He also gains levitation capabilities, as well as invisibility and intangibility. Zi-O's finisher in this form is the Omega Time Break (オメガタイムブレーク, Omega Taimu Burēku).

Sougo Tokiwa is portrayed by So Okuno (奥野 壮, Okuno Sō) while Rui Takahashi (高橋 琉晟, Takahashi Rui) and Haru Takagi (高木 波瑠, Takagi Haru) portray him as a child and younger child, respectively. The character is named after Tokiwa-sō, the former apartment of Shotaro Ishinomori.

Junichirō Tokiwa[]

Junichirō Tokiwa (常磐 順一郎, Tokiwa Jun'ichirō) is the owner of 9-to-5 and Sougo's great uncle. Even though his shop specializes in repairing clocks, he rarely has orders to fix them and usually works on repairing other old devices to make ends meet. In spite of this, he has demonstrated a form of intellect in repairing unique devices, such as Sougo's Ride Watches and Den-O's DenLiner.

Junichirō Tokiwa is portrayed by Katsuhisa Namase (生瀬 勝久, Namase Katsuhisa).

People from 2068[]

Geiz Myokoin[]

Geiz Myokoin (明光院 ゲイツ, Myōkōin Geitsu) is an 18-year old soldier from the year 2068 who joined the resistance against Ohma Zi-O as Kamen Rider Geiz (仮面ライダーゲイツ, Kamen Raidā Geitsu). While he travels back in time to kill Sougo before he can become Ohma Zi-O, Geiz momentarily relents after Sougo saves him while fighting the Another Rider, Another Build. At Tsukuyomi's request, Geiz agrees to stay his hand and watch events play out, becoming an on-again-off-again house guest of Sougo's. Over the course of the series, Geiz struggles with his desire to stop Ohma Zi-O and his growing friendship with Sougo before Geiz eventually becomes more open about his feelings and accepts Sougo as his friend following Another Zi-O's attacks.

In the film Kamen Rider Heisei Generations Forever, Geiz nearly loses his memories while helping Sougo defeat the Super Time Jacker Tid. However, Geiz travels in time to obtain Kamen Rider Kuuga's powers and give Sougo the Kuuga Ride Watch before helping him and the Heisei Kamen Riders defeat Tid.

After defeating Another Zi-O Two, Geiz discovers the future he came from is actually an alternate dimension where Ohma Zi-O continues to exist despite Sougo's efforts to avoid becoming him. During Sougo's final battle against Swartz, Geiz dies protecting the former and begs him to become Ohma Zi-O to defeat Swartz with his dying breath. After Sougo defeats the Time Jacker and resets time and reality, Geiz is revived as Keito Myokoin (明光院 景都, Myōkōin Keito), a contemporary classmate of Sougo's with the nickname "Geiz".

During the events of the film Kamen Rider Reiwa: The First Generation, Geiz temporarily regains his original timeline memories while helping Sougo defeat the surviving Time Jacker, Finis, who seeks to renew Swartz's plot to destroy the Kamen Rider multiverse, before losing them again once Finis is defeated.

In the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, Geiz is visited by a new iteration of White Woz, who grants him his powers from the original timeline. After meeting several past secondary Riders and seeing White Woz become the monstrous Another Diend to endanger Sougo, Geiz receives the Geiz Majesty Ride Watch from Daiki Kaito and defeats White Woz. Following this, Geiz permanently regains his original timeline memories and returns to his regular life.

Like Sougo, Geiz uses a Ziku-Driver with his own series of Ride Watches in order to transform. His personal weapon is the Zikan Zax (ジカンザックス, Jikan Zakkusu), which has a Yumi Mode (ゆみモード, Yumi Mōdo, Bow Mode) for the Kiwa Kiwa Shoot (キワキワシュート, Kiwa Kiwa Shūto) finisher and an Ono Mode (おのモード, Ono Mōdo, Axe Mode) for the Zakkuri Cutting (ザックリカッティング, Zakkuri Kattingu) finisher. He also possesses a red-colored Time Mazine and a Faiz Phone X.

• Geiz (ゲイツ, Geitsu): Dated 2068, this is Geiz's personal Ride Watch that allows him to transform into Kamen Rider Geiz and convert his Time Mazine from Vehicle Mode to Battle Mode. His finisher in this form is the Time Burst (タイムバースト, Taimu Bāsuto).
• Bike: An undated Ride Watch that allows Geiz to summon his own Ride Striker.
• Ghost (ゴースト, Gōsuto): Dated 2015, this Ride Watch is based on Kamen Rider Ghost Ore Damashii. One of two Ride Watches that he stole from Ohma Zi-O, it equips Geiz with the Ghost Armor (ゴーストアーマー, Gōsuto Āmā). In this form, he gains levitation, invisibility, and intangibility and can perform the Omega Time Burst (オメガタイムバースト, Omega Taimu Bāsuto) finisher. If used in the Zikan Zax while in Ono Mode, he is capable of generating orange spiritual energy to attack a target. After Tsukasa neutralizes the Ride Watch, Geiz begins using the one Sougo received from Ghost.
• Cross-Z (クローズ, Kurōzu): Dated 2017, this Ride Watch is based on Kamen Rider Cross-Z. If used in the Zikan Zax while in Yumi Mode, Geiz is capable of summoning a blue energy dragon. When used on the Time Mazine, it can assume Cross-Z Mode (クローズモード, Kurōzu Mōdo).
• Drive (ドライブ, Doraibu): Dated 2014, this Ride Watch is based on Kamen Rider Drive Type Speed. The second of two Ride Watches he stole from Ohma Zi-O, it equips Geiz with the Drive Armor (ド���イブアーマー, Doraibu Āmā), which allows him to channel acceleration capabilities and launch two autonomous projectiles modeled after Drive's Shift Speed Car known as the Shift Speed Speeds (シフトスピードスピード, Shifuto Supīdo Supīdo). Geiz's finisher in this form is the Hissatsu Time Burst (ヒッサツタイムバースト, Hissatsu Taimu Bāsuto, Finisher Time Burst).
• Faiz (ファイズ, Faizu): Dated 2003, this Ride Watch is based on Kamen Rider Faiz. It equips Geiz with the Faiz Armor (ファイズアーマー, Faizu Āmā), which enables him to materialize replicas of Faiz's SB-555C Faiz Shot and SB-555L Faiz Pointer weapons known as the Faiz Shot Shot (ファイズショットショット, Faizu Shotto Shotto) and Faiz Pointer Pointer (ファイズポインターポインター, Faizu Pointā Pointā), respectively. Geiz's finisher in this form is the Exceed Time Burst (エクシードタイムバースト, Ekushīdo Taimu Bāsuto).
  • Phone (フォン, Fon): A Ride Gadget which is commonly used as a communication device, the Faiz Phone X (ファイズフォン X(テン), Faizu Fon Ten) is utilized by time travelers from 2068. While using the Faiz Armor, Geiz can use this device to summon weapons.
• Wizard (ウィザード, Wizādo): Dated 2012, this Ride Watch is based on Kamen Rider Wizard Flame Style. It equips Geiz with the Wizard Armor (ウィザードアーマー, Wizādo Āmā), which allow him to generate spells based on Wizard's Wizard Rings. Geiz's finisher in this form is the Strike Time Burst (ストライクタイムバースト, Sutoraiku Taimu Bāsuto). If used in the Zikan Zax while in Yumi Mode, he is capable of generating magic to attack a target.
• Genm (ゲンム, Genmu): Dated 2016, this Ride Watch is based on Kamen Rider Genm Action Gamer Level 2. It equips Geiz with the Genm Armor (ゲンムアーマー, Genmu Āmā), which enables him to utilize Genm's attacks and generate a Game Area. Geiz's finisher in this form is the Critical Time Burst (クリティカルタイムバースト, Kuritikaru Taimu Bāsuto). When used on the Time Mazine, it can assume Genm Mode (ゲンムモード, Genmu Mōdo) and utilize Shin Kuroto Dan's warp pipes for teleportation purposes.
• Knight (ナイト, Naito): Dated 2002, this Ride Watch is based on Kamen Rider Knight. If used in the Zikan Zax while in Yumi Mode, Geiz is capable of firing energy cyclones.
• Bibill (ビビル, Bibiru): Dated 2019, this Ride Watch is based on Kamen Rider Ghost's ally Yurusen and was temporarily created from the Ghost Ride Watch. It equips Geiz with the Bibill Armor (ビビルアーマー, Bibiru Āmā), which allows him to perform the Bibill Time Burst (ビビルタイムバースト, Bibiru Taimu Bāsuto) finisher. This form appears exclusively in the "Hyper Battle DVD" special Kamen Rider Bi Bi Bi no Bibill Geiz.

Using the power of White Woz's MiRide Watches and his determination to become stronger, Geiz obtains the hourglass-like Geiz Revive Ride Watch (ゲイツリバイブライドウォッチ, Geitsu Ribaibu Raido Wotchi), which he can use to become Kamen Rider Geiz Revive (仮面ライダーゲイツリバイブ, Kamen Raidā Geitsu Ribaibu). In this form, he is armed with the Zikan Jaclaw (ジカンジャックロー, Jikan Jakkurō) and has access to two sub-forms:

• Geiz Revive Goretsu (ゲイツリバイブ剛烈, Geitsu Ribaibu Gōretsu, Geiz Revive Ardent Strength), which is dedicated to strength. In this sub-form, he wields the Zikan Jaclaw in its Noko Mode (のこモード, Noko Mōdo, Saw Mode), which can perform the Super Noko Setsuzan (スーパーのこ切斬, Sūpā Noko Setsuzan, Super Saw Cutting) finisher. Geiz's finisher in this sub-form is the Ichigeki Time Burst (一撃タイムバースト, Ichigeki Taimu Bāsuto, One Strike Time Burst).
• Geiz Revive Shippu (ゲイツリバイブ疾風, Geitsu Ribaibu Shippū, Geiz Revive Hurricane), which is dedicated to speed and has flight capabilities. In this sub-form, he wields the Zikan Jaclaw in its Tsume Mode (つめモード, Tsume Mōdo, Claw Mode) which can perform the Super Tsume Renzan (スーパーつめ連斬, Sūpā Tsume Renzan, Super Claw Multi-Slash) finisher. Geiz's finisher in this sub-form is the Hyakuretsu Time Burst (百烈タイムバースト, Hyakuretsu Taimu Bāsuto, Hundred-Fierce Time Burst).

During the events of the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, Geiz temporarily obtains the Geiz Majesty Ride Watch (ゲイツマジェスティライドウォッチ, Geitsu Majesuti Raido Wotchi) after merging all of Daiki's Secondary Rider Cards, which allows him to become Kamen Rider Geiz Majesty (仮面ライダーゲイツマジェスティ, Kamen Raidā Geitsu Majesuti). Similarly to Grand Zi-O with the 19 primary Heisei Riders, this form allows Geiz to channel the combined powers and weapons of all 18 secondary Heisei Kamen Riders. Geiz's finisher in this form is the Il Salvatore Time Burst (エル・サルバトーレタイムバースト, Iru Sarubatōre Taimu Bāsuto).

In addition to his own Ride Watches, Geiz is capable of using Zi-O's Ride Watches.

• Build: Loaned from Zi-O, Geiz can equip the Build Armor and perform the Vortex Time Burst (ボルテックタイムバースト, Borutekku Taimu Bāsuto) finisher.
• Gaim: Used as part of future Sougo's plan to free Geiz, the Ride Watch's energy allowed him to escape Helheim through an unstable Crack.
• Ex-Aid: Loaned from Zi-O, Geiz can equip the Ex-Aid Armor, which allowed him to generate a Mighty Action X themed Game Area with chocolate block platforms and perform the Critical Time Burst finisher.

Geiz Myokoin is portrayed by Gaku Oshida (押田 岳, Oshida Gaku).

Tsukuyomi[]

Alpina (アルピナ, Arupina), aka Tsukuyomi (ツクヨミ, Tsukuyomi), is a mysterious 18-year-old girl of nobility from the year 2068 and the younger sister of Time Jacker leader, Swartz. She was chosen to succeed her parents due to her chronokinetic powers, though Swartz intended to use her for his own ends. When she hesitated to stop him, he erased her memories and stranded her in Ohma Zi-O's timeline, where she ended up with the Resistance under a new name. Disapproving of Geiz's plan to kill Sougo in 2018 for fear of damaging the timeline, she travels back in time with him to help Sougo avert his future through gentler means instead.

Initially, Tsukuyomi finds it difficult to believe the kindly Sougo could become the tyrannical Ohma Zi-O. As his Rider powers grow in strength however, she becomes paranoid and demands Geiz kill Sougo. When the former refuses, she travels back in time to the latter's childhood to do it herself. However, she discovers Swartz orchestrated everything that had happened throughout the series, including Sougo becoming Zi-O. While trying to save the younger Sougo from her brother, Tsukuyomi inadvertently causes the bus accident that claimed Sougo's parents' lives as well as severe damage to the timeline. She is saved by Tsukasa Kadoya, who shows her how Swartz kidnapped all of the children on the bus as they all had the potential to become Zi-O.

Realizing her mistake and that Sougo becoming Ohma Zi-O was one of many possible futures, a repentant Tsukuyomi makes amends with Sougo and Geiz. Soon after, she begins to slowly regain her memories after rediscovering her powers and meeting her younger self in 2058. Amidst Another Zi-O Two's attacks, Tsukuyomi is captured by the Time Jackers so Swartz can reveal their original past to her before taking her powers. As she fully regains her original memories, Black Woz rescues her once Another Zi-O Two is defeated.

When Swartz causes a convergence of the A.R. Worlds, he attempts to kill Tsukuyomi since she had the power to stop him. To stop him, Sougo had given a past version of her a blank Ride Watch that he infused with Ohma Zi-O's power, which activated during the calamity's height. Once Black Woz provides her with a Ziku-Driver, Tsukuyomi gains the power become Kamen Rider Tsukuyomi (仮面ライダーツクヨミ, Kamen Raidā Tsukuyomi). However, she seemingly chooses to betray her friends to help her brother. After Sougo becomes Ohma Zi-O, she mortally wounds Swartz before he kills her in retaliation. When Sougo defeats Swartz and sacrifices Ohma Zi-O's power to undo the Time Jackers' damage, Tsukuyomi is revived in the new timeline as Alpina Tsukuyomi (月読 有日菜, Tsukuyomi Arupina), one of Sougo's contemporary classmates.

During the events of the film Kamen Rider Reiwa: The First Generation, she temporarily regains her original timeline memories before joining forces with Sougo, Geiz, and Black Woz to save Kamen Rider Zero-One and his allies from the surviving Time Jacker, Finis. Once they are stopped however, Tsukuyomi loses her memories once more.

In the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, Tsukuyomi permanently regains her memories along with her Rider powers while helping Geiz in his fight against Another Diend.

For most of the series, Tsukuyomi possesses her own Faiz Phone X for self-defense purposes and to communicate with her friends through time. She also owns a Time Mazine, which she lends to Sougo in the hopes of assisting him with time travel. Following Sougo's battle with the monstrous Another Agito, Tsukuyomi regains her ability to stop time. After becoming Kamen Rider Tsukuyomi, she gains the ability to generate an energy sword from her hand and perform the Time Jack (タイムジャック, Taimu Jakku) finisher.

Tsukuyomi is portrayed by Shieri Ohata (大幡 しえり, Ōhata Shieri) while Yui Matsushima (松島 由依, Matsushima Yui) portrays her as a child.

Ohma Zi-O[]

Kamen Rider Ohma Zi-O (仮面ライダーオーマジオウ, Kamen Raidā Ōma Jiō), known simply as Ohma Zi-O (オーマジオウ, Ōma Jiō) or the "Lord" (魔王, Maō), is the dictator of Earth in the year 2068. Due to his immense power, Tsukuyomi and Geiz travel back in time to 2018 in the hopes of intercepting Ohma Zi-O's past self and prevent his rise to power. When Tsukasa sends Sougo and Tsukuyomi to 2068, Ohma Zi-O has them brought before him so he can mock his past self's naiveté and overpower him; advising him to renounce being Zi-O if he refuses to accept his destiny of becoming him before sending him back to 2018. Along the way however, Sougo and his friends discover that Ohma Zi-O is from a possible future and that his existence is fixed after a future where he was defeated by Geiz Revive came into existence. Furthermore, Sougo changed Ohma's Day (オーマの日, Ōma no Hi), the day he was to become Ohma Zi-O, when he became Zi-O Trinity instead.

When Swartz initiates his endgame, Sougo travels to 2068 to confront Ohma Zi-O for a final battle; deducing the tyrant never intended to kill him. The future Sougo reveals that his power to destroy time and space is stronger than Swartz's before sending his younger self back with a blank Ride Watch. While Sougo did become Ohma Zi-O in 2019, he chooses to sacrifice the power to undo Swartz's damage. Impressed by his younger self's choice, Ohma Zi-O peacefully lets himself be erased from existence.

In an alternate timeline depicted in the film Over Quartzer, Ohma Zi-O's existence is revealed to be the result of the Quartzers' influence on Sougo's timeline and orchestrated by Sougo's original future counterpart, who intended to erase the Kamen Riders' influence on the Heisei era. Once he became aware of the Quartzers' plot, Ohma Zi-O supports his younger self in defeating their alternate self by giving him his personal Ride Watch.

The future Sougo transforms into Ohma Zi-O with an upgraded version of the Ziku-Driver called the Ohma Zi-O Driver (オーマジオウドライバー, Ōma Jiō Doraibā). Like the Time Jackers, Ohma Zi-O has chronokinetic abilities, which are powerful enough to destroy an entire army of resistance fighters within seconds and summon a past Heisei Rider from their time period to his aid. While he possesses Ride Watches, he is able to utilize their individual powers by pressing their activation buttons.

• Ghost: This Ride Watch was stolen from him by Geiz and later nullified by Decade.
• Drive: This Ride Watch was stolen from him by Geiz. As it was a component in the Grand Zi-O Ride Watch, Ohma Zi-O is able to corrupt Kamen Rider Drive after his younger self summons him during their second fight.
• Kiva: This Ride Watch allows Ohma Zi-O to summon Kiva's Bloody Rose violin and manipulate a colony of energy bats.
• Ryuki: This Ride Watch summons Ryuki's contract monster Dragreder (ドラグレッダー, Doragureddā) to attack a target.
• Kuuga: This Ride Watch creates a giant energy projection of a Linto Hieroglyphic (リント文字, Rintomoji) that he can absorb to perform a Rider Kick-like attack.
• Blade: This Ride Watch summons giant constructs of Blade's Rouze Cards.
• W: This Ride Watch summons green and purple cyclones.

Ohma Zi-O is voiced by Rikiya Koyama (小山 力也, Koyama Rikiya), while his civilian form is portrayed by Seiji Takaiwa (高岩 成二, Takaiwa Seiji).

Kasshine[]

Kasshine (カッシーン, Kasshīn) is a loyal mechanical servant of Ohma Zi-O, operated by a built-in AI unit, who is sent back in time to kill Geiz. After Sougo discards his Ziku-Driver, Kasshine is rendered inoperable before Swartz reprograms it to kill the boy despite no longer being a threat to the Time Jacker. However Sougo is able to defeat it once he regains his powers.

Its main weapon is a spear, though it also utilizes mechanical limbs for additional support.

Kasshine is voiced by Kenjiro Tsuda (津田 健次郎, Tsuda Kenjirō).

Time Mazines[]

The Time Mazines (タイムマジーン, Taimu Majīn) are exo-suit mecha that serve as support units for the resistance. They can interchange between Vehicle Mode (ビークルモード, Bīkuru Mōdo) and Battle Mode (バトルモード, Batoru Mōdo). Zi-O, Geiz, White Woz, and the Time Jackers all possess their own variants for time travel. The Time Mazine's development was said to have taken place as early as 2050, with Michal Minato using a prototype model emblazoned with his colors.

Dai Mazines[]

The Dai Mazines (ダイマジーン, Dai Majīn) are giant mecha controlled by Ohma Zi-O to conquer the world. According to Tsukuyomi, the Dai Mazines only appear on Ohma's Day. However, as a result of changes in the timeline caused by Sougo's party and the Time Jackers alike, they appear at the height of Christmas eve 2018. When Geiz destroys Sougo's Ziku-Driver to remove Ohma Zi-O from existence, the Dai Mazines are deactivated and descend into the ground.

Woz[]

The name "Woz" (ウォズ, Wozu) refers to two prophets from different futures who each herald their respective figures in hopes of ensuring the path to their respective futures. The name was originally held by Black Woz until White Woz's arrival in 2019, with Sougo providing distinction by labeling them with their outfits' predominant colors.

Both versions of Woz can use the BeyonDriver (ビヨンドライバー, Biyondoraibā) belt to become Kamen Rider Woz (仮面ライダーウォズ, Kamen Raidā Wozu) and use unique Ride Watches called MiRide Watches (ミライドウォッチ, Miraido Wotchi) to access forms based on future Kamen Riders called Futurerings (フューチャーリング, Fyūchāringu).^[2]

Kamen Rider Woz's personal weapon is the Zikan Despear (ジカンデスピア, Jikan Desupia), which has a Yari Mode (ヤリモード, Yari Mōdo, Spear Mode) for the Bakuretsu de Lance (爆裂DEランス, Bakuretsu De Ransu, Explosion of Lance) finisher, a Kama Mode (カマモード, Kama Mōdo, Scythe Mode) for the Ichigeki Kaman (一撃カマーン, Ichigeki Kamān, One Strike Kaman) finisher, and a Tsue Mode (ツエモード, Tsue Mōdo, Cane Mode) for the Fukashigi Magic (不可思議マジック, Fukashigi Majikku, Mysterious Magic) finisher.

• Woz: Woz's personal MiRide Watch that allows him to transform into Kamen Rider Woz. His finisher in this form is the Time Explosion (タイムエクスプロージョン, Taimu Ekusupurōjon).
• Shinobi (シノビ): A MiRide Watch based on Kamen Rider Shinobi that equips Kamen Rider Woz with the Futurering Shinobi (フューチャーリングシノビ, Fyūchāringu Shinobi). In this form, he gains various ninja-related powers, such as making copies of himself and traveling through shadows. His finisher in this form is the Ninpō: Time Binding Jutsu (忍法・時間縛りの術, Ninpō Jikan Shibari no Jutsu).
• Quiz (クイズ, Kuizu): A MiRide Watch based on Kamen Rider Quiz that equips Kamen Rider Woz with the Futurering Quiz (フューチャーリングクイズ, Fyūchāringu Kuizu). In this form, he receives worldwide knowledge and the Quiz Shoulders (クイズショルダー, Kuizu Shorudā) that allow him determine the answer to a riddle for his targets. As the original Kamen Rider Quiz attacks through riddles, Woz did so as well while using this form. However, this ability can be negated if the riddle's answer is debatable or if Woz does not know the answer. His finisher in this form is the Quiz Shock Break (クイズショックブレイク, Kuizu Shokku Bureiku).
• Kikai (キカイ): A MiRide Watch based on Kamen Rider Kikai that equips Kamen Rider Woz with the Futurering Kikai (フューチャーリングキカイ, Fyūchāringu Kikai). In this form, he can transform nearby humans into manipulable Semi Humanoises (セミヒューマノイズ, Semi Hyūmanoizu) and use back-mounted robotic claws to attack his enemies. His finisher in this form is the Full Metal Break (フルメタルブレイク, Furu Metaru Bureiku).
• Ginga (ギンガ): A unique MiRide Watch based on Kamen Rider Ginga that grants Kamen Rider Woz his Ginga Finaly (ギンガファイナリー, Ginga Fainarī) form, which grants access to cosmic powers. Woz's finisher in this form is the Cho Ginga Explosion (超ギンガエクスプロージョン, Chō Ginga Ekusupurōjon, Super Galaxy Explosion). Woz also has two sub-forms in addition to his main form:
  • Ginga Wakusei Form (ギンガワクセイフォーム, Ginga Wakusei Fōmu, Ginga Planet Form), which allows him to control planetary energy. Woz's finisher in this sub-form is the Sui-Kin-Chi-Ka-Moku-Do-Ten-Kai Explosion (水金地火木土天海エクスプロージョン, Sui Kin Chi Ka Moku Do Ten Kai Ekusupurōjon, Mercury-Venus-Earth-Mars-Jupiter-Saturn-Uranus-Neptune Explosion).
  • Ginga Taiyo Form (ギンガタイヨウフォーム, Ginga Taiyō Fōmu, Ginga Sun Form), which allows him to control pyrokinetic energy. Woz's finisher in this sub-form is the Burning Sun Explosion (バーニングサンエクスプロージョン, Bāningu San Ekusupurōjon).

As they are the same person from different timelines, both versions of Woz are portrayed by Keisuke Watanabe (渡邊 圭祐, Watanabe Keisuke).

Black Woz[]

The primary timeline version of Woz, also known as Black Woz (黒ウォズ, Kuro Wozu), is a so-called "mysterious prophet" and member of the Quartzers who considers himself a devoted follower of Ohma Zi-O and possesses a book of prophecies called the Ohma Advent Calendar (逢魔降臨暦, Ōma Kōrin Reki) that details the history of his master's rise to power. He also takes on the role of narrator for the series and interacts with the viewers to recount Sougo's adventures.

After giving Sougo his powers and despite learning of his intention to become a benevolent lord instead of a tyrant, a surprised Black Woz remains loyal to him as the latter's only concern is assuring Sougo's destiny of becoming Ohma Zi-O regardless by providing his services and occasionally intervening to rescue the youth from harm. Woz's dedication to ensuring his ruler's history initially made him fickle towards Sougo's friends and the Time Jackers, helping either side whenever Woz believed Sougo is straying too far from the intended path.

After being attacked and wounded by Geiz Revive, Black Woz forms a temporary alliance with the Time Jacker Heure to steal White Woz's Rider powers so he can force Geiz into overusing his Revive form and kill him. However, Sougo's influence on him causes Black Woz to support the former's decision to change his future. Because of this, once Sougo and Geiz settle their differences, Black Woz makes peace with Geiz and Tsukuyomi and moves in with them and Sougo. He remains by Sougo's side throughout the rest of the series.

When Swartz enacts his endgame to destroy time and space, Black Woz continues to fight by Sougo's side, though he is momentarily caught off-guard when Sougo becomes Ohma Zi-O to defeat Swartz before sacrificing the power to rewrite reality so he never becomes Ohma Zi-O. Despite this, Black Woz remains unaffected and he continues to watch over Sougo in the new timeline.

In an alternate ending depicted in the film Over Quartzer, Black Woz betrays Sougo and the others due to his allegiance to the Quartzers. However, after seeing that the future is not set in stone and due to his fondness for Sougo and the others, Woz ultimately returns to Sougo's side and fights beside him once more.

During the events of the film Kamen Rider Reiwa: The First Generation, Black Woz enters the World of Zero-One to help Sougo after the youth regains his Rider powers before joining him, Kamen Rider Zero-One, and the A.I.M.S. Riders in their fight against surviving Time Jacker, Finis, after they threaten the Kamen Rider multiverse.

In the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, Black Woz joins forces with Geiz, Sougo, and Tsukuyomi when a new White Woz becomes Another Diend and attacks them. After Geiz Majesty defeats him, Black Woz absorbs the new White Woz's essence.

During the events of the stage show Kamen Rider Zi-O: Final Stage, Black Woz is temporarily turned into the villainous and overzealous Tsukuyomi supporter, Red Woz (赤ウォズ, Aka Wozu), before returning to his senses.

Throughout the series, Black Woz has a habit of declaring "let's celebrate" (祝え, iwae) whenever Sougo obtains a new Ride Watch and Ride Armor, to point where he becomes pleased when Sougo asks him to do so. While he usually does this for Sougo, Black Woz begrudgingly did it once for Geiz when the latter attains his Majesty form. Black Woz also demonstrates special skills such as deflecting Another Fourze's attack with one hand and using his scarf to teleport himself and others. Additionally, he can also travel through time without using a Time Mazine. Prior to obtaining Kamen Rider Woz's powers, Black Woz could use the Ohma Advent Calendar to trap his target and destroy SOUGO's time portals by ripping out the book's pages. In Kamen Rider Heisei Generations Forever, Black Woz is able to access Philip's Gaia Library to learn more about Imagin and give Sougo information about them.

White Woz[]

White Woz (白ウォズ, Shiro Wozu) is a version of Woz from an alternate future that came into being after Sougo temporarily renounced his powers. White Woz is fanatically devoted to Geiz, who by his time defeated Ohma Zi-O as Geiz Revive, and is determined to make sure it occurs. Despite sharing a common goal with Geiz and Tsukuyomi, White Woz's apathetic and sadistic approach puts them at odds. After getting MiRide Watches from three future Kamen Riders, he uses their combined power to create the Geiz Revive Ride Watch and presents it to Geiz.

Not long after however, the Time Riders learn that White Woz only needed Geiz to defeat Ohma Zi-O to ensure his own existence, regardless if Geiz survives or not, and has been helping Swartz the entire time. During Geiz becoming Geiz Revive, White Woz is tricked into transferring his Rider powers to Black Woz. After Geiz and Sougo make peace with each other, White Woz begins to fade away due to his timeline being erased. Despite this, he realizes he should not have supported Swartz and combines his residual Rider energy with the Zi-O Two and Geiz Revive Ride Watches to create the Zi-O Trinity Ride Watch. Accepting his fate, White Woz warns Black Woz of Swartz's goals before fully fading away. Weeks later, as part of the final phase of his endgame, Swartz summons an Another World version of White Woz to distract Black Woz. However, the former learns the full extent of Swartz's plans and attempts to tell the Time Riders, but vanishes due to Another World's destruction before he could so so.

In the sequel special Kamen Rider Zi-O Next Time: Geiz, Majesty, a second Another World version of White Woz appears in the rewritten timeline to steal Geiz's Rider powers and become a true savior. In pursuit of this goal, White Woz steals Daiki Kaito's Rider powers to become Another Diend and utilizes several Kasshine units to attack Geiz's friends in an engineered act of heroism. After Geiz Majesty defeats him, this White Woz's essence is absorbed into Black Woz while Kaito regains his powers.

While he lacks Black Woz's abilities, the original White Woz possesses a tablet book-like device that allows him to manipulate the flow of time and shift certain events' outcomes in his favor by simply writing or speaking whatever he wants to happen into it. This ability is so powerful that it can negate the Time Jackers' chronokinetic powers. Due to his home timeline being an alternate version of 2068, White Woz also has his own Time Mazine, which allows him to travel to alternate timelines.

As Another Diend, White Woz has the ability to manipulate an army of Kasshine, summon past Heisei era monsters via card-like constructs, and is capable of performing his own version of Diend's Dimension Shoot finisher.

Time Jackers[]

The Time Jackers (タイムジャッカー, Taimu Jakkā) are a group of time travelers brought together by Swartz, who gifted his subordinates with the ability to freeze time, that seek to prevent Ohma Zi-O's existence by replacing him with an Another Rider. While claiming this goal is just, they are either apathetic to the consequences of altering the timeline or unconcerned with spoiling future events.

Following the Time Jackers' defeat at the end of the series, Finis attempts to seek revenge during the events of the film Kamen Rider Reiwa: The First Generation, only to be defeated like her fellow Time Jackers.

Swartz[]

Swartz (スウォルツ, Suworutsu) is the cool-headed and ruthless leader of the Time Jackers and Tsukuyomi's older brother. Preferring to take the direct approach, he sees friend and foe alike as pawns in his schemes. Originally from an alternate version of 2058, Swartz sought to protect his reality by destroying all of the A.R. Worlds and rule all of time and space. In his youth, he was irate over being passed over to succeed his parents, whose power he intended to use in his goals. When Tsukuyomi attempted to stop him, he stranded her in Ohma Zi-O's timeline with no memory of her past.

After growing older, Swartz commenced a long-term plot by forming the Time Jackers and influencing Sougo's life by installing his dream of becoming king; orchestrating the events that would lead to him becoming Zi-O and create the ideal conditions for fulfilling his ambition. Swartz also orchestrates Hiryū becoming Another Zi-O Two to capture Tsukuyomi and take her powers along with those of Tsukasa's; abandoning both the Time Jackers and Hiryū once they serve their purpose as he initiates his A.R. World convergence. However, Swartz meets his end when Sougo becomes Ohma Zi-O and destroys him before using his powers to undo the former's damage. In the new timeline that followed, Swartz became Sougo's contemporary principal.

Swartz possesses teleportation, memory manipulation, and powerful chronokinetic abilities that allow him to freeze time. He can also travel to alternate timelines, something normal Time Mazines are incapable of doing, and bestow a weaker form of his chronokinetic powers unto others, which he can take back at his leisure. Swartz later acquires the ability to become the monstrous Another Decade (アナザーディケイド, Anazā Dikeido). Able to manipulate Dimensional Walls like Tsukasa and Kaito, he can use them to attack or bind enemies as well as spirit people into his personal pocket dimension, Another World (アナザーワールド, Anazā Wārudo), so he can summon alternate reality versions of past Dark Riders to take their place.

Swartz is portrayed by Kentarou Kanesaki (兼崎 健太郎, Kanesaki Kentarō) while Tenma Naruse (成瀬 天馬, Naruse Tenma) portrays him as a teenager.

Heure[]

Heure (ウール, Ūru) is the youngest member of the Time Jackers, whose childishness conceals his cruelty and arrogance as he manipulates his targets into forming Another Rider contracts by doing something for them to place them in his debt. Due to his infantile personality, he can quickly become displeased when things do not go his way and act in a more ruthless manner to ensure his success. After Swartz and Ora use him as a host for the parasitic Another Kikai, Heure became wary of his fellow Time Jackers as well as suspicious over his leader's true goals. As such, combined with his growing curiosity over the truth of "Ohma's Day", he became more willing to work with Black Woz. When Swartz reveals his true colors and takes away his powers, Heure escapes with Ora to seek out the Time Riders' protection, only to be killed by her so she could ensure her own protection. After Sougo sacrifices his power as Ohma Zi-O to undo the Time Jackers' damage, Heure is revived as a contemporary classmate of Sougo's in the new timeline.

Like the other Time Jackers, Swartz gifts Heure chronokinetic abilities, though the latter also demonstrated telekinetic powers. Additionally, Heure pilots a personalized Time Mazine that resembles Kamen Rider Ghost's Captain Ghost, which can also transform into a copy of the Rider's Iguana Ghostriker.

Heure is portrayed by Rihito Itagaki (板垣 李光人, Itagaki Rihito).

Ora[]

Ora (オーラ, Ōra) is a female member of the Time Jackers with a calm, gentle disposition who prefers to use persuasion to form Another Rider contracts by exploiting targets in a state of emotional distress. While appearing outwardly gentle, her patience has its limits, especially when dealing with her fellow Time Jackers. After Swartz takes her powers away to enact his own plans, a disillusioned Ora joins Heure to seek out the Time Riders for protection until she learns she is being hunted by the Paradox Roidmude. Vengeful and frightened, she kills Heure and returns to Swartz in an attempt to kill him as well, only for Swartz to see through her plan and kill her instead. After Sougo reverses the Time Jackers' damage, Ora is revived as a contemporary classmate of his in the new timeline.

Like the other Time Jackers, Swartz gifts Ora with chronokinetic abilities. She also pilots a personalized Time Mazine that resembles Kamen Rider Kiva's Castle Doran. After she loses her chronokinetic abilities, she uses dark energy capable of obliterating targets.

Ora is portrayed by Ayaka Konno (紺野 彩夏, Kon'no Ayaka).

Another Riders[]

The Another Riders (アナザーライダー, Anazā Raidā), also known as Kaijin Riders (怪人ライダー, Kaijin Raidā), are monsters created by the Time Jackers to serve as contenders for their version of Ohma Zi-O. In certain cases, the original history of a Kamen Rider can create Another Riders all on its own. Each Another Rider is created when a Time Jacker uses an Another Watch (アナザーウォッチ, Anazāwotchi) on a person, transforming them into a corrupted version of an established Kamen Rider. To defeat Another Riders, the Time Riders have to use a corresponding Ride Watch or one of their stronger forms. While the Time Jackers succeed in having their Another Riders replace most of the Heisei era Riders in history, Sougo uses Ohma Zi-O's powers to rewrite time and undo their damage.

Hiryū Kakogawa[]

Hiryū Kakogawa (加古川 飛流, Kakogawa Hiryū) is a young man capable of transforming into the Another Rider, Another Zi-O (アナザージオウ, Anazā Jiō). Like Sougo, he is a survivor of the bus accident caused by Swartz, who abducted them and the other children due to their potential to become Zi-O. As a result, Hiryū develops a misguided vendetta against Sougo. After his first defeat as Another Zi-O, Hiryū feels insulted by Sougo's attempts to empathize with him and became more arrogant and ruthless as he proceeds to acquire all 19 Heisei Another Watches to become Another Zi-O Two (アナザージオウII, Anazā Jiō Tsū), only to be defeated by Sougo a second time. Following this, Swartz abandons Hiryū while Daiki Kaito steals his Another Watch.

During the events of the stage show, Kamen Rider Zi-O: Final Stage, Hiryū joins forces with the remaining Quartzers and gains the means to become the second Kamen Rider Barlckxs before becoming Another Ohma Zi-O (アナザーオーマジオウ, Anazā Ōma Jiō) after he obtains Ride Watches based on Kamen Riders One, Two, V3, Riderman, X, Amazon, and Stronger. While he manages to overwhelm the heroes with his new power, he is defeated by the combined efforts of Zi-O Ohma Form and Ohma Zi-O.

As Another Zi-O, Hiryū possesses Zi-O Two's clairvoyance and a pair of clock hand-like swords, which he can combine into a naginata to perform a variation of Zi-O Two's King Edge of Time Slash. He can also use the Heisei Another Riders' Another Watches to assume their forms. After becoming Another Zi-O Two, Hiryū gains Grand Zi-O's chronokinetic powers and the ability to summon Another Riders from across time. His Another Watch, which is docked in a black version of the Ziku-Driver instead of being absorbed into his body, is able to reconstitute itself until Kamen Riders Zi-O and Decade join forces to destroy it.

Hiryū Kakogawa is portrayed by Yu Sakuma (佐久間 悠, Sakuma Yū) while Taiga Komie (込江 大牙, Komie Taiga) portrays him as a child.

Heisei Another Riders[]

• Another Build (アナザービルド, Anazā Birudo): An Another Rider based on Kamen Rider Build with the ability to shoot flaming basketballs from his hands, access the individual powers of Build's Rabbit and Tank Fullbottles, distill athletes' essences into Fullbottles (フルボトル, Furubotoru), and use them to augment himself.^[3] He was originally a young basketball player from 2017 whom Heure saved from his predestined death by car accident. One year later, Another Build attacks Sougo before the latter transforms into Zi-O and defeats him. However, Heure revives the monster with increased power. In response, Zi-O and Geiz travel back to 2017 to defeat Another Build's past iteration. Following this, the basketball player is left with no memory of being Another Build, though his death was still averted due to Heure's earlier actions. The basketball player is portrayed by Taisei Mori (森 大成, Mori Taisei).
• Another Ex-Aid (アナザーエグゼイド, Anazā Eguzeido): An Another Rider based on Kamen Rider Ex-Aid and the Bugsters. He has the ability to perform inhuman feats based on platform games, travel into Game Worlds (ゲームの世界, Gēmu no Sekai), and summon Bugster Virus A (バグスターウイルスA, Bagusutā Uirusu Ē) foot soldiers to aid him. He was originally Iida (飯田), who created the "game that cannot be cleared by anyone" (誰もクリアしたことのないゲーム, Dare mo kuria shita koto no nai gēmu) in the present to capture young boys and find a compatible heart donor for his son, Keisuke (ケイスケ), due to his hatred for doctors. After being defeated by Zi-O in 2016, Keisuke is put under Hiiro Kagami's care so he could be cured before his disease reached the heart transplant stage. Iida is portrayed by Takashi Kodama (児玉 貴志, Kodama Takashi).
• Ryūichi Sakuma (佐久間 龍一, Sakuma Ryūichi): A Ryusei School student who Ora gave the ability to become Another Faiz in 2003 to revive his childhood friend, Karin Yamabuki (山吹 カリン, Yamabuki Karin), and prolong her life by extracting bio-energy from girls who shared her age and birthday. By the time Sakuma and Karin attend Amanogawa High School in 2011, he loses the ability to become Another Faiz. To make up for this, Swartz gives him the ability to become Another Fourze. After facing Zi-O in 2011 and Geiz in 2003, Sakuma is defeated in both timelines, realizes he was hurting Karin more than he was helping her, and is forced to accept her death. Ryūichi Sakuma is portrayed by Atomu Mizuishi (水石 亜飛夢, Mizuishi Atomu).
  • Another Fourze (アナザーフォーゼ, Anazā Fōze): An Another Rider based on Kamen Rider Fourze and the Zodiarts who can absorb or supply bio-energy and use the switches on his belt to summon Energy Modules (エネルギーモジュール, Enerugī Mojūru) based on Fourze's Modules.
  • Another Faiz (アナザーファイズ, Anazā Faizu): An Another Rider Based on Kamen Rider Faiz who is also able to absorb bio-energy as well as summon a red aura to perform a variation of Faiz's Crimson Smash Rider Kick. This was Sakuma's original Another Rider form until it died out in 2011 and was revived following Another Fourze's defeat.
• Another Wizard (アナザーウィザード, Anazā Wizādo): An Another Rider based on Kamen Rider Wizard armed with a ring that lets him channel the abilities of his template's Wizard Rings. He was originally Hayase (早瀬), who uses his powers to support the theater he works at and impress its owner, Kaori Kinoshita (木ノ下 香織, Kinoshita Kaori), whom he has a crush on. Due to his inability to confess his feelings however, Kaori became engaged to another man, causing Hayase to seek revenge. After Geiz intercepts his past self in 2012 and destroys his Another Watch, he and Sougo help the present Hayase make contact with his past self and encourage him to confess his feelings regardless of what happens. Hayase is portrayed by Zuimaro Awashima (粟島 瑞丸, Awashima Zuimaro).
• Another OOO (アナザーオーズ, Anazā Ōzu): An Another Rider based on Kamen Rider OOO. See Kuroto Dan.
• Another Gaim (アナザー鎧武, Anazā Gaimu): An Another Rider based on Kamen Rider Gaim and the Overlords. He is armed with a zanbatō, the ability to create zipper-like portals, or Cracks, that connect to a pseudo-Helheim (ヘルヘイム, Heruheimu) pocket dimension, and command over an army of Inves-like monsters. He was originally Asura (アスラ) of the dance group Team Baron before he was ousted by his leader, Kaito Kumon in 2013. After becoming Another Gaim, Asura takes over Team Baron and banishes anyone who challenges him to Helheim. Though he is defeated by Zi-O in 2013, this was undone by the "Man of the Beginning" so Sougo can rescue Geiz after he was trapped in Helheim. Once he did so, the future Sougo returns to 2013 to defeat Another Gaim permanently while his present self does the same. Asura is portrayed by Yuuki Tomotsune (友常 勇気, Tomotsune Yūki).
• Another Ghost (アナザーゴースト, Anazā Gōsuto): An Another Rider based on Kamen Rider Ghost who can use his chest-mounted eye to absorb human souls for use as a hoodie armament, summon Gamma Commando-like familiars and Hoodie Ghosts for support, and perform a variation of Ghost's Omega Drive Rider Kick.^[4] He was originally Makimura (マキムラ), a policeman from 2015 who was killed in the line of duty and forced to become Another Ghost after refusing Heure's offer to be saved. He uses his powers to prevent accidents by targeting their instigators before his death is averted and he is defeated by Zi-O. Makimura is portrayed by Naotaka Horiike (堀池 直毅, Horiike Naotaka).
• Another Den-O (アナザー電王, Anazā Den'ō): An Another Rider based on Kamen Rider Den-O who possesses four swords and can travel through time on the Another DenLiner (アナザーデンライナー, Anazā Denrainā) bullet train.
  • The first Another Den-O the Time Riders encountered was Ataru Hisanaga, who was used by the Super Time Jacker Tid and defeated by the original Kamen Rider Den-O in 2018 during the events of the film Kamen Rider Heisei Generations Forever.
  • The second Another Den-O was originally Takuya Endō (遠藤 タクヤ, Endō Takuya), who blames the death of his late sister, Sayuri (サユリ), on her remorseful boyfriend, Yukihiro Ōsumi (大澄 ユキヒロ, Ōsumi Yukihiro). After Ora turns him into Another Den-O in 2019, Takuya attempts to steal Den-O's DenLiner so he can go back in time to 2017 and prevent Sayuri's death. While in the past and fending off the Time Riders, Den-O, Kamen Rider Zeronos, and a Mole Imagin that Yukihiro unintentionally formed a contract with, the past Takuya learns his sister's death was caused by his future Another Rider self. His future self gains assistance from a pack of Mole Imagin before they are defeated by Grand Zi-O, Den-O, and Zeronos while past Takuya reconciles with Yukihiro. Takuya Endō is portrayed by Dai Goto (後藤 大, Gotō Dai).
• Another W (アナザーW (ダブル), Anazā Daburu): An Another Rider based on Kamen Rider W capable of manipulating wind and using the Luna Gaia Memory's power. During the events of Kamen Rider Heisei Generations Forever, he is created from an unknown person to serve as Tid's second-in-command, lead past monster combatants and transform Ataru into Another Den-O. He is destroyed by Zi-O. Another W is voiced by Kentarō Itō (伊藤 健太郎, Itō Kentarō).
• Another Kuuga: An Another Rider based on Kamen Rider Kuuga and the Grongi. See Tid.
• Another Ryuga (アナザーリュウガ, Anazā Ryūga): Also known as Kamen Rider Ryuga, he originally existed outside of the primary Kamen Rider timeline before Heure summoned Ryuga to turn him into an Another Rider version of himself.
• Another Ryuki: An Another Rider based on Kamen Rider Ryuki. See Tatsuya Kanō.
• Another Blade (アナザーブレイド, Anazā Bureido): An Another Rider based on Kamen Rider Blade. See Amane Kurihara.
• Another Agito (アナザーアギト, Anazā Agito) Army: A zombie-like Time Jacker variant based on the original Another Agito.
• Another Hibiki (アナザー響鬼, Anazā Hibiki): An Another Rider based on Kamen Rider Hibiki and the Makamou. He was originally Tsutomu Tsuzumiya (鼓屋 ツトム, Tsuzumiya Tsutomu), a disciple of the current Kamen Rider Hibiki, Kyosuke Kiriya, as well as Sougo's childhood friend. After Tsutomu left Kiriya because his master felt he was inadequate to take on the Hibiki title from his master, Tsuzumiya was unwillingly turned into Another Hibiki despite wanting to become an oni in his own right. Once Kiriya accepts his responsibilities and becomes Kamen Rider Hibiki, he and Zi-O Trinity save Tsutomu and Kiriya reconciles with his student. Tsutomu Tsuzumiya is portrayed by Rihito Noda (野田 理人, Noda Rihito) while Yura Sato (佐藤 結良, Satō Yura) portrays him as a child.
• Another Kiva (アナザーキバ, Anazā Kiba): An Another Rider based on Kamen Rider Kiva and the Fangire who can command Kiva's Arms Monsters and can wield them in their weapon forms. She was originally Yūko Kitajima (北島 祐子, Kitajima Yūko), who became a serial killer in 2015 after being dumped by her ex-boyfriend Tetsuya Tagami (田上 哲也, Tagami Tetsuya) and beating his new girlfriend to death. Ora exploits her situation to turn Yūko into Another Kiva, but the latter's unstable mind makes her immune to the Time Jackers' control. After nearly manipulating Sougo into serving her, Geiz saves him before Black Woz defeats her. Following this, Ora kills Yūko, who dies in Sougo's arms. Yūko Kitajima is portrayed by Yumiko Shaku (釈 由美子, Shaku Yumiko).
• Another Kabuto (アナザーカブト, Anazā Kabuto): An Another Rider based on Kamen Rider Kabuto and the Worms. See Sou Yaguruma.
• Another Decade: An Another Rider based on Kamen Rider Decade and Chinomanako Diend. See Swartz.
• Another Drive (アナザードライブ, Anazā Doraibu): An Another Rider based on Kamen Rider Drive, Mashin Chaser, and the Roidmudes. See Paradox.
• Another Diend (アナザーディエンド, Anazā Diendo): An Another Rider based on Kamen Rider Diend and Chinomanako Diend. See White Woz.
• Another Tsukuyomi (アナザーツクヨミ, Anazā Tsukuyomi): An Another Rider based on Kamen Rider Tsukuyomi. They are defeated by Zi-O II and appear exclusively in the Kamen Rider Zi-O tie-in novel of the same name.
• Another Geiz (アナザーゲイツ, Anazā Geitsu): An Another Rider based on Kamen Rider Geiz that can evolve into Another Geiz Revive Shippu (アナザーゲイツリバイブ疾風, Anazā Geitsu Ribaibu Shippū), which is based on Kamen Rider Geiz Revive Shippu. They are defeated by Woz Ginga Taiyo Form and appear exclusively in the Kamen Rider Zi-O tie-in novel of the same name.
• Another Woz (アナザーウォズ, Anazā Wozu): An Another Rider based on Kamen Rider Woz. They are defeated by Zi-O II and appear exclusively in the Kamen Rider Zi-O tie-in novel of the same name.
• Another Ohma Zi-O Trinity (アナザーオーマジオウトリニティ, Anazā Ōma Jiō Toriniti): An evolved version of Another Ohma Zi-O that absorbed the Geiz and Tsukuyomi Another Watches. They are defeated by Zi-O Trinity Version Geiz & Tsukuyomi and appear exclusively in the Kamen Rider Zi-O tie-in novel of the same name.

Post-Heisei Another Riders[]

• Another Shinobi: Also known as Kamen Rider Shinobi, a future Rider who Sougo brought into existence. Swartz coerces Heure to turn Shinobi's present-day counterpart into an Another Rider version of himself.
• Another Quiz (アナザークイズ, Anazā Kuizu): An Another Rider based on Kamen Rider Quiz who has the power to steal other people's intelligence and enhance his own. He was originally the father of Kamen Rider Quiz, Tamotsu Dōan (堂安 保, Dōan Tamotsu), a scientist obsessed with advancing his work, to the point where he neglected his family and uses his powers as Another Quiz to steal other researchers' knowledge. He is defeated by White Woz. Tamotsu Dōan is portrayed by Yoichiro Saito (斉藤 陽一郎, Saitō Yōichirō).
• Another Kikai (アナザーキカイ, Anazā Kikai): An Another Rider based on Kamen Rider Kikai with its template's powers, the ability to conjure vines from its hands, fly, and fire missiles. Its true form is a parasitic insect that becomes its face, which can survive upon every defeat and latch onto any form of organic matter to recreate its Another Rider body. As a result of Sougo's innate ability to create alternate futures, he inadvertently creates Another Kikai as a counterpart to Kamen Rider Kikai. The Another Rider became a target of the Time Jackers, who seek its Another Watch, but the Time Riders are able to retrieve its MiRide Watch so White Woz can permanently defeat Another Kikai.
• Another Zero-One (アナザーゼロワン, Anazā Zero Wan): An Another Rider based on Kamen Rider Zero-One and the Magias. See Will.

Shōwa Another Riders[]

• Another One: An Another Rider based on Kamen Rider One, an alternate universe version of One depicted in the film Kamen Rider The First, and Kamen Rider Core. See Finis.

Future Kamen Riders[]

Unlike the primary timeline's future Kamen Riders, such as Michal Minato, these Kamen Riders originate from possible future timelines that came into being due to Sougo's growing strength as Zi-O and gaining the ability to create such time periods. While each of the future Riders share the same Mirai Driver (ミライドライバー, Mirai Doraibā, Future Driver) belt, they have different names and Driver attachments in each time period.

Rentarō Kagura[]

Rentarō Kagura (神蔵 蓮太郎, Kagura Rentarō) is a ninja from 2022 who can transform into Kamen Rider Shinobi (仮面ライダーシノビ, Kamen Raidā Shinobi). By his time, Rentarō was chosen by his mentor, Master Gamano, to become Shinobi. Despite his proficiency in using ninjutsu, the former is forced to play the role of a hapless ninja in order to hide his secret identity and defend his little sister Iroha until she turns 18.

Utilizing the Shinobi Driver (シノビドライバー, Shinobi Doraibā) in conjunction with the Menkyo Kaiden Plate (メンキョカイデンプレート, Menkyo Kaiden Purēto) integrated into the Shuriken Starter (シュリケンスターター, Shuriken Sutātā), Rentarō can transform into Shinobi. While transformed, he uses ninjutsu and elemental attacks and wields a ninjatō. His finisher is the Finish Ninpō (フィニッシュ忍法, Finisshu Ninpō).

In 2019, Rentarō is an ordinary man who longs to protect the weak, as he has a personal stake due to a troubled life as a weakling himself. However, he harbors vengeful feelings towards bullies, which uses to turn him into Another Shinobi (アナザーシノビ, Anazā Shinobi), granting him the abilities of his future self. Though Rentarō is able to overcome his personal demons with Sougo's encouragement, Swartz brainwashes Rentarō into turning back into Another Shinobi before the latter is defeated by White Woz.

Rentarō Kagura is portrayed by Hideya Tawada (多和田 任益, Tawada Hideya).

Mondo Dōan[]

Mondo Dōan (堂安 主水, Dōan Mondo) is a genius riddle enthusiast from 2040 who can transform into Kamen Rider Quiz (仮面ライダークイズ, Kamen Raidā Kuizu) via the Quiz Driver (クイズドライバー, Kuizu Doraibā) in conjunction with the Quiz Topper (クイズトッパー, Kuizu Toppā) card. In battle, he asks his enemies questions that can determine the outcome of the battle depending on how they answer. His finisher is the Final Quiz Flash (ファイナルクイズフラッシュ, Fainaru Kuizu Furasshu).

White Woz helps Mondo travel to 2019 to find his missing father, who disappeared before the latter was born. After fighting and working with the Time Riders to defeat Another Quiz, Mondo reconciles with his father and eventually returns to his time.

Mondo Dōan is portrayed by Katsuhiro Suzuki (鈴木 勝大, Suzuki Katsuhiro).

Rento Makina[]

Rento Makina (真紀那 レント, Makina Rento) is a Humanoise (ヒューマノイズ, Hyūmanoizu) from the year 2121 who can transform into Kamen Rider Kikai (仮面ライダーキカイ, Kamen Raidā Kikai) via the Kikai Driver (キカイドライバー, Kikai Doraibā) in conjunction with the wrench-shaped Spannerder (スパナーダー, Supanādā) and screwdriver-shaped Screwder (スクリューダー, Sukuryūdā). Due to being solar powered, Rento makes use of a satellite that stores and replenishes him with solar energy. He can perform one of three finishers: Kikai de Hakaider (キカイデハカイダー, Kikai De Hakaidā), Ultimetal Finish (アルティメタルフィニッシュ, Arutimetaru Finisshu), or Full Metal the End (フルメタル・ジ・エンド, Furu Metaru Ji Endo).

Rento was originally part of a group of human-like androids called "Humanoises", who took over the world and hunted humanity to near extinction by 2121. After meeting a group of children, Rento befriended them and defected to defend humanity. Unlike the other future Riders, Rento was modeled after Sougo's robot toy, his sole "companion" during his childhood.

Rento Makina is portrayed by Jingi Irie (入江 甚儀, Irie Jingi).

Kamen Rider Ginga[]

Kamen Rider Ginga (仮面ライダーギンガ, Kamen Raidā Ginga) is a malevolent extraterrestrial Kamen Rider who transforms via the Ginga Driver (ギンガドライバー, Ginga Doraibā) and can perform one of three finishers: Gigantic Ginga (ギガンティックギンガ, Gigantikku Ginga), Dynamite Sunshine (ダイナマイトサンシャイン, Dainamaito Sanshain), or Strike the Planet Nine (ストライクザプラネットナイン, Sutoraiku Za Puranetto Nain).

Ginga was born from a space-time disruption who arrived on Earth in 2019, intending to rule the universe with his unfathomable powers. In response, the Time Riders, the Time Jackers, and Another Kiva temporarily join forces to drive Ginga back to his home timeline.

Kamen Rider Ginga is voiced by Tomokazu Sugita (杉田 智和, Sugita Tomokazu).

Returning characters[]

As a special anniversary series, Kamen Rider Zi-O features cameos from actors of past Kamen Rider series from the Heisei era reprising their roles. While most characters appear in two episodes or the movies, the protagonists of Kamen Rider Decade play a more prominent role as reoccurring side characters directly involved in the series' plotline.

Film-exclusive characters[]

Futaros[]

Futaros (フータロス, Fūtarosu) is a benevolent Imagin who appears exclusively in the film Kamen Rider Heisei Generations Forever. He forged a contract with Ataru Hisanaga to save his host's brother, Shingo, in the past. To grant Ataru's wish, he brings Sougo, Kamen Rider Build, and some of their friends to his host's world until Tid kidnaps Shingo. When a desperate Ataru tells Futaros the end the contract amidst Tid's invasion, the Imagin travels back in time to January 29, 2000 with Sougo and Ataru to try and save Shingo from Another W. After the Heisei Riders defeat Tid and the Hisanaga brothers are returned safely, Futaros leaves for parts unknown.

Futaros is voiced by Kenichi Takitō (滝藤 賢一, Takitō Ken'ichi).

Hisanaga brothers[]

The Hisanaga brothers who, as a result of Tid's actions, live in world where the Heisei Kamen Riders exist as fictional characters. They appear exclusively in Kamen Rider Heisei Generations Forever.

Ataru Hisanaga[]

Ataru Hisanaga (久永 アタル, Hisanaga Ataru) is a high school student and a Heisei Kamen Rider fan from the year 2018. He forged a contract with Futaros to meet Kamen Riders and leave his reality behind as his parents were more worried about his missing brother, Shingo. When he and Sougo travel back in time while following Futaros to find Shingo however, Ataru is forcibly transformed into Another Den-O (アナザー電王, Anazā Den'ō). Due to Kamen Rider Den-O's status as a singularity, he and the original DenLiner crew are unaffected by the timeline changes, allowing them to defeat Another Den-O and save Ataru.

Ataru Hisanaga is portrayed by Nayuta Fukuzaki (福崎 那由他, Fukuzaki Nayuta).

Shingo Hisanaga[]

Shingo Hisanaga (久永 シンゴ, Hisanaga Shingo) is Ataru's 7-year-old older brother from the year 2000 who was abducted by Tid and his Another Riders due to his status as a singularity. After escaping the Another Den-Liner on December 3, 2018, he encounters the Kamen Riders and Ataru while being pursued by the Another Riders. Shingo is eventually caught by the Another Riders and sealed by Tid, though he is saved by the Heisei Kamen Riders. After the final battle, Shingo is returned to his own time.

Shingo Hisanaga is portrayed by Taiyo Saito (斎藤 汰鷹, Saitō Taiyō).

Tid[]

Tid (ティード, Tīdo) is a Super Time Jacker (スーパータイムジャッカー, Sūpā Taimu Jakkā) capable of brainwashing and manipulating his targets. Unlike the other Time Jackers, Tid's master plan is to erase the history of all Heisei Kamen Riders and become the ruler of the world. To do this, he creates the Kuuga Another Watch, which allows him to transform into the giant Another Kuuga (アナザークウガ, Anazā Kūga), so he can abduct and seal Shingo, whose status as a singularity made the boy a potential threat to his plans. After being defeated by Zi-O and Build, Tid uses his Another Watch on Shingo to absorb him and evolve his Another Rider form into the larger, four-armed Another Ultimate Kuuga (アナザーアルティメットクウガ, Anazā Arutimetto Kūga). However, he is ultimately defeated by the 20 Heisei Kamen Riders, killing him and saving Shingo as a result. He appears exclusively in Kamen Rider Heisei Generations Forever.

As Another Kuuga, he can fly and battle the Time Riders in their Time Mazines. As Another Ultimate Kuuga, he gains the ability to fire a powerful beam from his mouth and create past monster combatants.

Tid is portrayed by Shunsuke Daitō (大東 駿介, Daitō Shunsuke).

Oda Nobunaga[]

Oda Nobunaga (織田 信長) is an infamous warlord from Japan's Sengoku period whom Sougo idolizes and hoped to emulate. He appears exclusively in Kamen Rider Zi-O the Movie: Over Quartzer.

Oda Nobunaga is portrayed by Tomoya Maeno (前野 朋哉, Maeno Tomoya).

Gyūzō[]

Gyūzō (牛三) is a ninja who serves under Nobunaga and appears exclusively in Kamen Rider Zi-O the Movie: Over Quartzer.

Gyūzō is portrayed by Jiei Wakabayashi (若林 時英, Wakabayashi Jiei)

Clara Steinbelt[]

Clara Steinbelt (クララ・スタインベルト, Kurara Sutainberuto) is an ancestor of Krim Steinbelt from the Sengoku period who appears exclusively in Kamen Rider Zi-O the Movie: Over Quartzer. Realizing that time had been distorted and after learning of the Quartzers' attempts to kill her, Krim and his ally Kamen Rider Mach ask Sougo and his friends to protect Clara.

Clara Steinbelt is portrayed by Eru Aoba (蒼葉 える, Aoba Eru)

Quartzers[]

The Quartzers (クォーツァー, Kwōtsā) are a mysterious group who view themselves as history's overseers and appear primarily in Kamen Rider Zi-O the Movie: Over Quartzer. The three leading Quartzers possess Ziku-Drivers that allow them to become Kamen Riders and utilize Ride Watches based on Kamen Riders whose media aired during the Heisei period but are recognized as Shōwa period Riders.

The minor Quartzers are portrayed by YORI, TOMO, KIMI, U-YEAH, KENZO, and DAICHI of Da Pump.

Leader of the Quartzers[]

SOUGO Tokiwa (常磐 SOUGO (ソウゴ), Tokiwa Sōgo), initially referred to as the Leader of the Quartzers (クォーツァーのリーダー, Kwōtsā no Rīdā), is the original future iteration of Sougo Tokiwa and the King of Time who established the conditions to bring about Ohma Zi-O and used Ohma Zi-O as a kagemusha to secretly reshape the Heisei era to his liking and prevent Sougo from becoming Grand Zi-O. SOUGO is destroyed by Zi-O Ohma Form and the Heisei Kamen Riders, negating his influence in Ohma Zi-O's creation.

SOUGO can transform into Kamen Rider Barlckxs (仮面ライダーバールクス, Kamen Raidā Bārukusu), who utilizes three Ride Watches based on Kamen Rider Black RX, Bio Rider, and Robo Rider. Additionally, he wields a weapon similar to the Shōwa Rider's Revolcane. Similar to Ohma Zi-O, Barlckxs can utilize the power of Ride Watches by pressing their activation buttons, such as combining Bio Rider and J's so he could transform into a liquefied Jumbo Formation. His finisher is his own variation of the Time Break.

SOUGO Tokiwa is portrayed by ISSA of Da Pump.

Kagen[]

Kagen (カゲン) is a high-ranking Quartzer who can transform into Kamen Rider Zonjis (仮面ライダーゾンジス, Kamen Raidā Zonjisu). He is destroyed by Kamen Rider Zero-One.

As Zonjis, he utilizes three Ride Watches based on the last three Shōwa Kamen Riders who debuted in the early Heisei era: Kamen Riders Shin, ZO, and J. Unlike the other Quartzer Riders, Zonjis fights with brute strength in combat and can remove his armored cape to increase his offensive capabilities. He can also utilize Barlckx's Robo Rider Ride Watch to fire a barrage of missiles.

Kagen is portrayed by Papaya Suzuki (パパイヤ鈴木, Papaiya Suzuki).

Jōgen[]

Jōgen (ジョウゲン) is a high-ranking Quartzer member who can transform into Kamen Rider Zamonas (仮面ライダーザモナス, Kamen Raidā Zamonasu). He is destroyed by Geiz and six of the Heisei Kamen Riders.

As Zamonas, he wields a crossbow, can summon a Castle Doran-themed Time Mazine like Ora, and utilizes three Ride Watches based on the three protagonists of the Shōwa era-themed Heisei era web series Kamen Rider Amazons: Kamen Riders Amazon Omega, Amazon Alpha, and Amazon Neo.

Jōgen is portrayed by Syuusuke Saito (斉藤 秀翼, Saitō Shūsuke).

Finis[]

Finis (フィーニス, Fīnisu) is a non-binary member of the Time Jackers who seeks to erase all Kamen Riders from history,^[5] believing that they are inherently evil, and appears exclusively in Kamen Rider Reiwa: The First Generation. Finis accomplishes their goal by traveling to the World of Zero-One and recruiting the Humagear Will to create an alternate timeline and attract Sougo. Despite absorbing most of Sougo's Rider powers and becoming the giant Another One (アナザー1号, Anazā Ichigō), Finis is destroyed by Kamen Riders Zi-O and Zero-One.

As Another One, Finis possesses a motorcycle-like lower body. After absorbing Geiz's Time Mazine, Another One evolves into Another New One (アナザー新1号, Anazā Shin Ichigō), acquiring grasshopper-like appendages in place of the motorcycle.

Finis is portrayed by Rina Ikoma (生駒 里奈, Ikoma Rina) while Another One is voiced by Kōji Ishii (石井 康嗣, Ishii Kōji).^[6]

Rider Time-exclusive characters[]

Iroha Kagura[]

Iroha Kagura (神蔵 紅芭, Kagura Iroha) is Rentarō's 17-year-old younger sister who admires Shinobi, unaware that her idol and older brother are the same person. As she is also the princess of the evil Niji no Hebi clan, Rentarō strives to protect her. Like her brother, she is a ninja proficient in ninjutsu and skilled with using shuriken.

Iroha Kagura is portrayed by Asuka Hanamura (華村 あすか, Hanamura Asuka).^[7]

Isamichi Konjō[]

Isamichi Konjō (今生 勇道, Konjō Isamichi) is Rentarō's childhood friend and son of the Konjō Company's (今生カンパニー, Konjō Kanpanī) CEO who can transform into Kamen Rider Hattari (仮面ライダーハッタリ, Kamen Raidā Hattari). He harbors affections for Iroha, but after learning she only has eyes for Shinobi, he decides to defeat him in order to gain her love. When the Konjō Company hosts a tournament, Isamichi is forced to sabotage Iroha's examination due to said company forbidding nepotism. Later on, he joins forces with Shinobi when the Niji no Hebi target her.

Much like the other Future Kamen Riders, Isamichi also has his own Mirai Driver, dubbed the Hattari Driver (ハッタリドライバー, Hattari Doraibā). As Hattari, and similarly to Shinobi, he utilizes elemental attacks and a ninjatō in battle, though he can also summon ninjas to aid him. His finisher is the Fantastic Ninpo (ファンタスティック忍法, Fantasutikku Ninpō).

Isamichi Konjō is portrayed by Takuma Zaiki (財木 琢磨, Zaiki Takuma).^[7]

Master Gamano[]

Master Gamano (ガマノ師匠, Gamano-shishō) is Rentarō's mentor who selected the youth to become Kamen Rider Shinobi after saving him. Having observed the Kagura family as a frog caricature and despite choosing him, Gamano views Rentarō as expendable to his agenda and leaves to recruit several more ninja Riders.

Master Gamano is portrayed by Nobuo Kyo (姜 暢雄, Kyō Nobuo).^[7]

Yaminin[]

Yaminin (闇忍) is a mysterious ninja from an evil ninja faction known as Niji no Hebi (虹蛇, Rainbow Serpent) who was responsible for turning Japan into a ninja-based country through the government by 2022. Despite being unaware of Iroha being their group's princess, Yaminin develops an affection for her and infiltrates a competition held by the Konjō Company to kidnap her. After being defeated and spared by Shinobi and Hattari, Yaminin promises to return in the future.

Yaminin is voiced by Masashi Ebara (江原 正士, Ebara Masashi).^[7]

Sara[]

Sara (サラ) is a young woman who was accidentally hit by her boyfriend Tatsuya in a car accident and was left hospitalized. After he became Another Ryuki and her soul became trapped in the Mirror World, she sets up a Rider War to find someone to stop him. Before she dies of her injuries, she begs Shinji Kido to save Tatsuya.

Sara is portrayed by Mayu Ura (浦 まゆ, Ura Mayu).

Tatsuya Kanō[]

Tatsuya Kanō (加納 達也, Kanō Tatsuya) is a young man who inadvertently injured his girlfriend Sara in a car accident. Recognizing his plight, Kamen Rider Odin turns him into the Another Rider, Another Ryuki (アナザー龍騎, Anazā Ryūki) and tasks hm with stealing people's souls in order to save Sara. After learning Sara's soul had become trapped in the Mirror World and that she had set up a Rider War to find someone to stop him, Tatsuya became disheartened and realized all he had done was for naught as he was only hurting Sara further. When she dies, Odin sees no more use for his pawn and sends Tatsuya into a berserker rage before Zi-O saves the latter.

As Another Ryuki, he has similar powers as Another Ryuga and his original template.

Tatsuya Kanō is portrayed by Shun Ishida (石田 隼, Ishida Shun).

Mirror World Kamen Riders[]

• Kimura (木村): A young man who became the new Kamen Rider Verde (仮面ライダーベルデ, Kamen Raidā Berude) in Sara's Rider War and sides with Shinji Kido, Miyuki Tezuka, and Ishida. Even though he and his team are betrayed by Tezuka and ambushed by Ouja and Zolda, Kimura survives. After learning the truth about Ryuga, Kimura attempts to warn Shinji, but fails to stop Ryuga from possessing Shinji and beating Kimura before leaving him to be eaten by a Mirror Monster horde. Kimura is portrayed by Daichi Yamaguchi (山口 大地, Yamaguchi Daichi).
• Ishida (石田): A young man who became the new Kamen Rider Imperer (仮面ライダーインペラー, Kamen Raidā Inperā) in Sara's Rider War. He sides with Shinji Kido, Miyuki Tezuka, and Kimura, only to be murdered by a traitorous Tezuka. Ishida is portrayed by Ryo Shinoda (篠田 諒, Shinoda Ryō).
• Ishibashi (石橋): A young man who became the new Kamen Rider Scissors (仮面ライダーシザース, Kamen Raidā Shizāzu). He sides with Jun Shibaura, Totsuka, and Tezuka before Shibaura and Tezuka silently kill him while having lunch. Ishibashi is portrayed by Ken Nakajima (中島 健, Nakajima Ken).
• Totsuka (戸塚): A young man who became the new Kamen Rider Tiger (仮面ライダータイガ, Kamen Raidā Taiga) in Sara's Rider War. He sides with Jun Shibaura and Ishibashi before he is killed by Kamen Rider Ouja. Totsuka is portrayed by Ken Sugawara (菅原 健, Sugawara Ken).
• Unnamed man: A middle-aged man who became the only known version of Kamen Rider Abyss (仮面ライダーアビス, Kamen Raidā Abisu) in the primary Kamen Rider timeline after Sara recruits him for her Rider War. He is killed by Kamen Rider Knight. The unnamed man is portrayed by Kenji Tominaga (富永 研司, Tominaga Kenji) and voiced by Yasunao Sakai (坂井 易直, Sakai Yasunao).

Misa Kuon[]

Misa Kuon (久遠 ミサ, Kuon Misa) is a student of Hanazono High School and girlfriend of Sougo's alternate universe counterpart, Sougo B.

Misa Kuon is portrayed by Rena Takeda (武田 玲奈, Takeda Rena).^[1]

Notes[]

References[]

External links[]

• Cast on TV Asahi