Seiichiro Nagata
In 2016, he made his acting debut in the 3rd season of the musical “The Prince of Tennis”. On October 2, 2017 he transferred from Watanabe Entertainment to SUI Co., Ltd. He is active in 2.5 stages and Musical Touken Ranbu as Murakumo Gou. In November 2023, he appeared in "Kamen Rider Gatchard" and " Kamen Rider Gatchard VS Kamen Rider Legend" as Houou Kaguya Quartz. He left SUI Co., Ltd. on April 30, 2024 and became a freelancer starting May 1, 2024. On July 1st of the same year, he opened his first official fan club and official website.
- Known for
- Acting
- Born
- 1998-07-09 · Shizuoka Prefecture, Japan
Known for
- Kamen Rider (1971) — Houou Kaguya Quartz / Kamen Rider Legend
- After Moving Seats, The Boy Behind Me Has A Crush On Me (2026) — Ten Mayama
- Kamen Rider Gotchard VS Kamen Rider Legend (2023) — Houou Kaguya Quartz / Kamen Rider Legend
- Kamen Rider Gotchard: The Future Daybreak (2024) — Ho-Oh Kaguya Quartz / Kamen Rider Legend
- Kamen Rider Gotchard (2023) — Ho-Oh Kaguya Quartz / Kamen Rider Legend
- Kamen Rider Gotchard Short Anime: Gotcha the Seven Mysteries of Furasu High! (2024) — Houou Kaguya Quartz
- Musical Touken Ranbu: Tokyo Kokoro Oboe (2021) — Murakumo Gou
- Labyrinth Opera: Pretty Boy Detective Club (2022) — Michiru Fukuroi
- No. 1 Sentai Gozyuger Anniversary Discussion (2025) — Kamen Rider Legend (voice)
- Psychic Detective Yakumo: Bias of Thought (2023) — Yaguchi
- Musical Touken Ranbu: Gou on Stage ~Shinpen Satomi Hakkenden~ (2023) — Murakumo Gou
- Brain Crash Theatre [Dramatical Murder] (2019) — Aoba Seragaki
- Kamen Rider Gotchard Final Episode: You and Me, We've Got CHEMY×STORY - Director's Cut Version (2024) — Ho-Oh Kaguya Quartz / Kamen Rider Legend
- Musical Touken Ranbu: 9th Anniversary Festival (2024) — 村雲江
- Mob Psycho 100 (Crash! Claw's 7th Branch) (2022) — Shou Suzuki
- Nanashi: Seventh Special Cause of Death Department: The Stage (2023) — Tsuyobi