Kamen Rider Zi-O

Kamen Rider Zi-O (仮面ライダージオウ) is a Japanese tokusatsu drama in Toei Company's Kamen Rider Series. It is the twentieth and final series in the Heisei period run, the first series to be produced in the Reiwa period, and the twenty-ninth series overall. The series started on September 2, 2018, joining  in the Super Hero Time line-up after the finale of Kamen Rider Build. After Lupinranger VS Patranger’s conclusion, it was joined by ' in February 2019 and later ' in March 2019. After the finale of Kamen Rider Zi-O, Ryusoulger would air alongside Kamen Rider Zero-One in a Super Hero Time block.

The show tagline is "Go beyond space-time!" (時空を超えろ！). Much like Kamen Rider Decade, it commemorates all of the Heisei-era Kamen Riders to date.

Plot
{| style="width: 70%;" 1= "The Heisei Kamen Riders have passed through this era. It's time to pass that power down to the future. Rejoice at the birth of the new king!"

- Opening narration by Rikiya Koyama (episode 1-16).

2= "Oma's Day! The judgment day marking the end of the Kamen Rider era. Is it the end of history or just the beginning? Choose our future!"

- Opening narration by Rikiya Koyama (episode 17-29)

3= "The Heisei Kamen Riders have passed through this era. Inheriting all the powers, a new legend is beginning. Rejoice at the birth of the true king!"

- Opening narration by Rikiya Koyama (episode 30-40)

4= "The Heisei Kamen Riders have passed through this era. Gathering their powers, the final battle begins. Open up the future of being a true king!"

- Opening narration by Rikiya Koyama (episode 41-Present)

Sougo Tokiwa, a high school student born in the year 2000, has always dreamed of becoming a king when he encounters a mysterious girl named Tsukuyomi, who hails from the future in a desperate effort to alter her dire future. She presents Sougo with an ominous warning "You will become the king of time, Kamen Rider Zi-O, a demonic king destined to rule the world.”. Sougo takes up the mantle as Kamen Rider Zi-O to stop the Time Jackers from destroying the very fabric of space-time while protecting the legacy of the Heisei Kamen Riders that came before him. During his journey alongside Geiz Myokoin, a Kamen Rider from Tsukuyomi's future, and the mysterious prophet Woz who reminds Sougo of his demonic destiny, they will meet their esteemed predecessors who they must gain their trust and powers from in order to create a new future for the Kamen Riders and mankind itself. This is the story of a Kamen Rider who would be king, who will fight to save the past, present, and future, encountering the various Heisei Kamen Riders throughout space-time.

Allies

 * Tsukuyomi
 * Junichiro Tokiwa

Amanogawa High School

 * Chuta Ohsugi
 * Daita Kondou
 * Chikao Nezu

Daitenku Temple

 * Shibuya Hachioji
 * Narita Kisarazu

Other

 * Riku (corpse)
 * Mana Kazaya
 * Takahiro Omuro
 * Daisuke Okubo
 * Eri Ogawa (stand-in)
 * Masato Kusaka
 * Amane Kurihara
 * Shun Kageyama (mentioned/picture only)
 * Owner
 * Master of Fumen
 * Hina Izumi
 * Kengo Utahoshi (mentioned/picture only)
 * Yuki Jojima (mentioned/picture only)
 * Miu Kazashiro (mentioned/picture only)
 * Shun Daimonji (mentioned/picture only)
 * Tomoko Nozama (mentioned/picture only)
 * JK (mentioned/picture only)
 * Ryusei Sakuta (mentioned/picture only)
 * Kaito Kumon
 * Masamune Dan (stand-in)
 * Misora Isurugi

Other

 * Sara
 * Miss Sailor
 * Oda Nobunaga

Time Jackers

 * Swartz
 * Heure
 * Ora
 * Tid

Other

 * Orphnochs
 * Elephant Orphnoch (flashback)
 * Worms
 * Salis Worms
 * Gryllus Worm
 * Imagin
 * Mole Imagin
 * New Mole Imagin
 * Dopants
 * Masquerade Dopants
 * Yummies
 * Waste Yummy
 * Neko Yummy (flashback)
 * Greeed
 * Zodiarts
 * Stardust Ninja Dustards
 * Phantoms
 * Ghouls
 * Inves
 * Elementary Inves (flashback)
 * Roidmudes
 * Low-Class Roidmude
 * Gamma
 * Gamma Commandos
 * Bugsters
 * Bugster Virus
 * Aranbura Bugster (flashback)
 * Smash
 * Strong Smash Hazard (flashback)
 * Kasshin

Cast

 * Sougo Tokiwa (常磐 ソウゴ): So Okuno (奥野 壮)
 * Geiz Myoukouin (明光院 ゲイツ): Gaku Oshida (押田 岳)
 * Tsukuyomi (ツクヨミ): Shieri Ohata (大幡 しえり)
 * Woz (ウォズ): Keisuke Watanabe (渡邊 圭祐)
 * Heure (ウール): Rihito Itagaki (板垣 李光人)
 * Ora (オーラ): Ayaka Konno (紺野 彩夏)
 * Swartz (スウォルツ): Kentaro Kanesaki (兼崎 健太郎)
 * Junichiro Tokiwa (常磐 順一郎): Katsuhisa Namase (生瀬 勝久)
 * Ziku-Driver, Ridewatch, Oma Zi-O Voices: Rikiya Koyama (小山 力也)
 * Ziku-Driver Voice: Yohei Onishi (大西 洋平)
 * BeyonDriver Voice: AFRO (アフロ)

Build

 * Sento Kiryu (桐生 戦兎)/Takumi Katsuragi (葛城 巧): Atsuhiro Inukai (犬飼 貴丈)
 * Ryuga Banjo (万丈 龍我): Eiji Akaso (赤楚 衛二)

Ex-Aid

 * Emu Hojo (宝生 永夢): Hiroki Iijima (飯島 寛騎)
 * Hiiro Kagami (鏡 飛彩): Toshiki Seto (瀬戸 利樹)
 * Kuroto Dan (檀黎 斗): Tetsuya Iwanaga (岩永 徹也)

555

 * Takumi Inui (乾 巧): Kento Handa (半田 健人)
 * Masato Kusaka (草加 雅人): Kohei Murakami (村上 幸平)

Fourze

 * Chuta Ohsugi (大杉 忠太): Takushi Tanaka (田中 卓志)
 * Daita Kondo (近藤 大太): Kazuyoshi Nagazawa (中澤 兼利)
 * Chikao Nezu (根津 誓夫): Yuya Hara (原 勇弥)

Wizard

 * Kosuke Nitoh (仁藤 攻介): Tasuku Nagase (永瀬 匡)

OOO

 * Eiji Hino (火野 映司): Shu Watanabe (渡部 秀)
 * Hina Izumi (泉 比奈): Riho Takada (高田 里穂)

Gaim

 * Kouta Kazuraba (葛葉 紘汰): Gaku Sano (佐野 岳)
 * Kaito Kumon (駆紋 戒斗): Yutaka Kobayashi (小林 豊)

Ghost

 * Takeru Tenkuji (天空寺 タケル): Shun Nishime (西銘 駿)
 * Makoto Fukami (深海 マコト): Ryosuke Yamamoto (山本 涼介)
 * Shibuya Hachioji (八王子 シブヤ): Takuya Mizoguchi (溝口 琢矢)
 * Narita Kisarazu (木更津ナリタ): Reo Kansyuji (勧修寺 玲旺)

Decade

 * Tsukasa Kadoya (門矢 士): Masahiro Inoue (井上 正大)
 * Daiki Kaito (海東 大樹): Kimito Totani (戸谷 公人)

Future Riders

 * Rentaro Kagura (神蔵 蓮太郎): Hideya Tawada (多和田 任益)
 * Mondo Douan (堂安 主水): Katsuhiro Suzuki (鈴木 勝大)
 * Rento Makina (真紀那 レント): Jingi Irie (入江 甚儀)
 * Kamen Rider Ginga (仮面ライダーギンガ): Tomokazu Sugita (杉田 智和)

Ryuki

 * Shinji Kido (城戸 真司), Dark Shinji (鏡像の城戸 真司): Takamasa Suga (須賀 貴匡)
 * Daisuke Okubo (大久保 大介): Kanji Tsuda (津田 寛治)

Blade

 * Kazuma Kenzaki (剣崎 一真): Takayuki Tsubaki (椿 隆之)
 * Hajime Aikawa (相川 始): Ryōji Morimoto (森本 亮治)
 * Amane Kurihara (栗原 天音): Hikari Kajiwara (梶原 ひかり)

Agito

 * Shouichi Tsugami (津上 翔一): Toshiki Kashu (賀集 利樹)
 * Mana Kazaya (風谷 真魚): Rina Akiyama (秋山 莉奈)
 * Takahiro Omuro (尾室 隆弘): Akiyoshi Shibata (柴田 明良)

Hibiki

 * Tomizo Todayama (戸田山 登巳蔵): Shingo Kawaguchi (川口 真五)
 * Kyousuke Kiriya (桐矢 京介): Yuichi Nakamura (中村 優一)

Kiva

 * Jiro (次狼): Kenji Matsuda (松田 賢二)

Kabuto

 * Arata Kagami (加賀美 新): Yuuki Sato (佐藤 祐基)
 * Sou Yaguruma (矢車 想): Hidenori Tokuyama (徳山 秀典)
 * Shun Kageyama (影山 瞬): Masato Uchiyama (内山 眞人)

Den-O

 * Yuto Sakurai (桜井 侑斗): Yuichi Nakamura (中村 優一)
 * Momotaros (モモタロス): Toshihiko Seki (関 俊彦)
 * Urataros (ウラタロス): Kōji Yusa (遊佐 浩二)
 * Kintaros (キンタロス): Masaki Terasoma (てらそま まさき)
 * Ryutaros (リュウタロス): Kenichi Suzumura (鈴村 健一)
 * Deneb (デネブ): Hōchū Ōtsuka (大塚 芳忠)

Other

 * Miss Sailor (セーラーさん): Yu Takahashi (高橋 ユウ)