Acting
Gaku Oshida
Born 1997-04-09
Yokosuka, Kanagawa, Japan
Department: Acting
Biography
Gaku Oshida is a Japanese actor and dancer who portrayed Geiz Myokoin/Kamen Rider Geiz in "Kamen Rider Zi-O". Until March 31, 2021, Oshida was affiliated with Ever Green Entertainment. In November of 2016, Oshida was the winner of the 29th Junon Super Boy Contest and attended the contest alongside contestants Hiroki Iijima and Ryutaro Okada. He made his first drama appearance in a live-action adaptation of the manga series "Inside Mari". In mid-2018, he was cast as Geiz Myokoin in "Kamen Rider Zi-O".
Known For
Prominent works featuring Gaku Oshida
TV
Quick View
Kamen Rider
1971
TMDB3.2
TV
Quick View
CSI: Crime Scene Talks
2011
TMDB3.6
TV
Quick View
Unnatural
2018
TMDB4.2
TV
Quick View
Kamen Rider Zi-O
2018
TMDB4.3
TV
Quick View
Mr. Unlucky Has No Choice but to Kiss!
2022
TMDB3.6
Movie
Quick View
Kamen Rider Heisei Generations Forever
2018
TMDB3.0
TV
Quick View
Cosmetic Playlover
2024
TMDB3.8
TV
Quick View
In-House Marriage Honey
2020
TMDB3.5
TV
Quick View
The 8.2 Second Rule
2022
TMDB3.1
TV
Quick View
Ooku: The Inner Chambers
2023
TMDB3.5
Filmography & Credits
Complete career catalog (37 titles)
| Poster | Title | Character / Role | Type | Year |
|---|---|---|---|---|
 | Can you kiss me first? | Eito Kanda | TV Series | 2026 |
 | Unmarried Fraud: The Side of Him I Didn't Know | Kazuya Komai | TV Series | 2026 |
| DEAD ENDー羅刹の刻印ー | Aoi Soji | TV Series | 2026 | |
 | GRAPARA! | Sumida Shinobu | TV Series | 2025 |
 | Love Thunder | Somei Aoi | TV Series | 2025 |
 | Fast Break | Satoru Saiga | Movie | 2024 |
 | Cosmetic Playlover | Sahashi Tenma | TV Series | 2024 |
 | Stage Play "Journey to the West" | Self / Appearance | TV Series | 2024 |
 | Suiheisen | Self / Appearance | Movie | 2024 |
 | Sugar Sugar Honey | Akanishi Sota | TV Series | 2024 |
 | Marriage with Me? Seriously? | Self / Appearance | TV Series | 2023 |
 | Ooku: The Inner Chambers | 溝口左京（みぞぐち さきょう） / お夏（おなつ） | TV Series | 2023 |
 | The 8.2 Second Rule | Shuto Miyagi | TV Series | 2022 |
 | Mr. Unlucky Has No Choice but to Kiss! | Saku Tsujimura | TV Series | 2022 |
| Mr. Unlucky Has No Choice but to Kiss! | Acting Double | TV Series | 2022 |
 | Honey Lemon Soda | Student | Movie | 2021 |
 | RIDER TIME: Kamen Rider Zi-O VS Decade -7 of Zi-O!- | Geiz Myoukouin / Kamen Rider Gates | TV Series | 2021 |
 | In-House Marriage Honey | Yamagata Yuki | TV Series | 2020 |
 | Grim Reaper Case Book | Ippachi | Movie | 2020 |
 | Kamen Rider Zi-O: Final Stage | Geiz Myokoin / Kamen Rider Geiz | Movie | 2020 |
 | Kamen Rider Zi-O NEXT TIME: Geiz, Majesty | Geiz Myokoin / Kamen Rider Geiz | Movie | 2020 |
 | Kamen Rider Reiwa: The First Generation | Geiz Myoukouin / Kamen Rider Geiz | Movie | 2019 |
 | Super Juvenile Detective Team NEO Beginning | Self / Appearance | Movie | 2019 |
 | Kamen Rider Zi-O: Special Event | Geiz Myoukouin | Movie | 2019 |
 | Kamen Rider BiBiBi no Bibill Geiz | Geiz Myokoin / Kamen Rider Geiz | Movie | 2019 |
 | Kamen Rider Zi-O the Movie: Over Quartzer | Geiz Myoukouin / Kamen Rider Geiz | Movie | 2019 |
 | RIDER TIME: Kamen Rider Ryuki | Geiz Myokouin / Kamen Rider Geiz | TV Series | 2019 |
 | 仮面ライダージオウ スピンオフ RIDER TIME | Self / Appearance | TV Series | 2019 |
 | Kamen Rider Heisei Generations Forever | Geiz Myoukouin / Kamen Rider Geiz | Movie | 2018 |
| Heisei Kamen Rider 20 Series: Supplementary Plan | Geiz Myoukouin | TV Series | 2018 | |
 | Samurai Sensei | Toranosuke | Movie | 2018 |
| Kamen Rider Zi-O: Transformation Lessons | Geiz Kyokoin | TV Series | 2018 | |
 | Kamen Rider Zi-O | Geiz Myokoin / Kamen Rider Geiz | TV Series | 2018 |
 | Unnatural | 澤田・松本 | TV Series | 2018 |
 | CSI: Crime Scene Talks | Self / Appearance | TV Series | 2011 |
 | Kamen Rider | Geiz Myoukouin / Kamen Rider Geiz | TV Series | 1971 |
| 仮面ライダー 令和 ザ・ファースト・ジェネレーション | Self / Appearance | Movie | — |