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Gaku Oshida
ACTOR

Gaku Oshida

Known for Kamen Rider · Unnatural · Doctor-X: Surgeon Michiko Daimon

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…

Snapshot 2026-10-16

Born
Apr 9, 1997
Birthplace
Yokosuka, Kanagawa, Japan
Known For
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".

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Known For

TVKamen Rider
Kamen RiderGeiz Myoukouin / Kamen Rider Geiz · 1971
★ 6.4
TVUnnatural
Unnatural澤田・松本 · 2018
★ 8.4
TVDoctor-X: Surgeon Michiko Daimon
Doctor-X: Surgeon Michiko Daimon1 eps · 2012
★ 7.5
MOVIEKamen Rider Heisei Generations Forever
Kamen Rider Heisei Generations ForeverGeiz Myoukouin / Kamen Rider Geiz · 2018
★ 6.2
TVCSI: Crime Scene Talks
CSI: Crime Scene Talks1 eps · 2011
★ 7.2
TVOoku: The Inner Chambers
Ooku: The Inner Chambers溝口左京（みぞぐち さきょう） / お夏（おなつ） · 2023
★ 7.0

Filmography

Movies

Kamen Rider Heisei Generations ForeverGeiz Myoukouin / Kamen Rider Geiz
2018
Samurai SenseiToranosuke
2018
Kamen Rider BiBiBi no Bibill GeizGeiz Myokoin / Kamen Rider Geiz
2019
Kamen Rider Reiwa: The First GenerationGeiz Myoukouin / Kamen Rider Geiz
2019
Kamen Rider Zi-O the Movie: Over QuartzerGeiz Myoukouin / Kamen Rider Geiz
2019
Kamen Rider Zi-O: Special EventGeiz Myoukouin
2019
Super Juvenile Detective Team NEO Beginning
2019
Grim Reaper Case BookIppachi
2020
Kamen Rider Zi-O NEXT TIME: Geiz, MajestyGeiz Myokoin / Kamen Rider Geiz
2020
Kamen Rider Zi-O: Final StageGeiz Myokoin / Kamen Rider Geiz
2020
Honey Lemon SodaStudent
2021
Fast BreakSatoru Saiga
2024
Suiheisen
2024
仮令
仮面ライダー 令和 ザ・ファースト・ジェネレーション

Television

Kamen RiderGeiz Myoukouin / Kamen Rider Geiz · 49 eps
1971
CSI: Crime Scene Talks1 eps
2011
Doctor-X: Surgeon Michiko Daimon1 eps
2012
HK
Heisei Kamen Rider 20 Series: Supplementary PlanGeiz Myoukouin · 4 eps
2018
Kamen Rider Zi-OGeiz Myokoin / Kamen Rider Geiz · 49 eps
2018
KR
Kamen Rider Zi-O: Transformation LessonsGeiz Kyokoin · 1 eps
2018
Unnatural澤田・松本 · 1 eps
2018
RIDER TIME: Kamen Rider RyukiGeiz Myokouin / Kamen Rider Geiz · 3 eps
2019
仮面ライダージオウ スピンオフ RIDER TIME12 eps
2019
In-House Marriage HoneyYamagata Yuki · 7 eps
2020
RIDER TIME: Kamen Rider Zi-O VS Decade -7 of Zi-O!-Geiz Myoukouin / Kamen Rider Gates · 3 eps
2021
Mr. Unlucky Has No Choice but to Kiss!Saku Tsujimura · 8 eps
2022
Mr. Unlucky Has No Choice but to Kiss!Acting Double
2022
The 8.2 Second RuleShuto Miyagi · 1 eps
2022
Marriage with Me? Seriously?8 eps
2023
Ooku: The Inner Chambers溝口左京（みぞぐち さきょう） / お夏（おなつ） · 10 eps
2023
Cosmetic PlayloverSahashi Tenma · 3 eps
2024
Stage Play "Journey to the West"1 eps
2024
Sugar Sugar HoneyAkanishi Sota · 8 eps
2024
GRAPARA!Sumida Shinobu · 8 eps
2025
Love ThunderSomei Aoi · 27 eps
2025
DE
DEAD ENDー羅刹の刻印ーAoi Soji · 3 eps
2026
Unmarried Fraud: The Side of Him I Didn't KnowKazuya Komai · 8 eps
2026
You Should Be The One To Come Kiss MeEito Kanda · 1 eps
2026

Photos

Gaku Oshida photo
Gaku Oshida photo
Gaku Oshida photo
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