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 and the first series to air 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.

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
In the fall of 2018, a time machine appears before Sougo Tokiwa, a high schooler that has always dreamed of becoming a king. Then, Tsukuyomi appears from the time machine, telling Sougo, “I come from the year 2068, a world without hope where Oma Zi-O, the king of time reigns supreme.” She has come from the future in a desperate effort to change her own time. She then gives Sougo an ominous warning, “You will become the king of time, Kamen Rider Zi-O, a demonic king destined to rule the world.” Can this really be Sougo’s fate? 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

Returning Characters

 * Riku (corpse)
 * Mana Kazaya
 * Takahiro Omuro
 * Daisuke Okubo
 * Eri Ogawa (stand-in)
 * Masato Kusaka
 * Yuri Aso
 * Hina Izumi
 * Ryusei Sakuta (mentioned/picture)
 * Krim Steinbelt
 * Masamune Dan (stand-in)
 * Kaito Kumon
 * Misora Isurugi

Other

 * Sara

Time Jackers

 * Swartz
 * Heure
 * Ora
 * Tid

Other

 * Orphnochs
 * Elephant Orphnoch (flashback)
 * Imagin
 * Futaros
 * 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)

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

 * Yuri Aso (麻生 ゆり): Yu Takahashi (高橋 優)
 * Jiro (次狼): Kenji Matsuda (松田 賢二)