Cast & creator
Seiichiro Nagata
Best known for Kamen Rider, Kamen Rider Gotchard, After Moving Seats, The Boy Behind Me Has A Crush On Me
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.
Also known as: 永田 聖一朗, Seiichirou Nagata, Nagata Seiichiro
25
film credits
8
television credits
33
1971–2026 · acting roles
8.1
average across scored titles
Signature credits
Known for
★ 6.4Kamen Rider
Houou Kaguya Quartz / Kamen Rider Legend · 1971
★ 7.0Kamen Rider Gotchard
Ho-Oh Kaguya Quartz / Kamen Rider Legend · 2023
★ 8.1After Moving Seats, The Boy Behind Me Has A Crush On Me
Ten Mayama · 2026
★ 8.0Kamen Rider Gotchard Short Anime: Gotcha the Seven Mysteries of Furasu High!
Houou Kaguya Quartz · 2024
★ 9.0Kamen Rider Gotchard VS Kamen Rider Legend
Houou Kaguya Quartz / Kamen Rider Legend · 2023
Across film & television
Filmography (33)
Showing 33 of 33 credits
Kamen Rider
Houou Kaguya Quartz / Kamen Rider Legend
1971Kamen Rider Gotchard
Ho-Oh Kaguya Quartz / Kamen Rider Legend
2023After Moving Seats, The Boy Behind Me Has A Crush On Me
Ten Mayama
2026Kamen Rider Gotchard Short Anime: Gotcha the Seven Mysteries of Furasu High!
Houou Kaguya Quartz
2024Kamen Rider Gotchard VS Kamen Rider Legend
Houou Kaguya Quartz / Kamen Rider Legend
2023
Kamen Rider Gotchard: The Future Daybreak
Ho-Oh Kaguya Quartz / Kamen Rider Legend
2024
Kamen Rider: Reiwa's Gorgeous Sports Day
Kamen Rider Legend (voice)
2024
Kamen Rider Gotchard Final Episode: You and Me, We've Got CHEMY×STORY - Director's Cut Version
Ho-Oh Kaguya Quartz / Kamen Rider Legend
2024Kamen Rider Gavv: Transformation Lessons
Ho-Oh Kaguya Quartz / Kamen Rider Legend (voice)
2024
Musical The Prince Of Tennis Concert: Dream Live 2018
Kikumaru Eiji
2018
Labyrinth Opera: Pretty Boy Detective Club Continued
Michiru Fukuroi
2025
Musical The Prince Of Tennis Concert: Dream Live 2017
Kikumaru Eiji
2017
Musical Touken Ranbu: Gou on Stage Countdown Party
Murakumo Gou
2025
Nanashi: Seventh Special Cause of Death Department
Tsuyobi
2023
Musical Touken Ranbu ~Shinken Ranbu Sai 2022~
Murakumo Gou
2022
No. 1 Sentai Gozyuger Anniversary Discussion
Kamen Rider Legend (voice)
2025
Musical Touken Ranbu - Medetaya Uta no Homare Hananomai - 10th anniversary
Murakumo Gou
2025
Musical Touken Ranbu: Gou on Stage Zepp Tour
Murakumo Gou
2023
Mob Psycho 100 (Crash! Claw's 7th Branch)
Shou Suzuki
2022
Musical Touken Ranbu: Tokyo Kokoro Oboe
Murakumo Gou
2021
Kamen Rider Gotchard: Final Stage
Ho-Oh Kaguya Quartz/Kamen Rider Legend
2024
Mob Psycho 100 ~Ura tai Ura ~
Sho Suzuki
2019
Musical Touken Ranbu: 9th Anniversary Festival
村雲江
2024
Kakegurui Stage
Ryota Suzui
2025
Labyrinth Opera: Pretty Boy Detective Club
Michiru Fukuroi
2022
Musical Touken Ranbu: Suehirogari Ranbu Yagai Matsuri
2023![Brain Crash Theatre [Dramatical Murder]](https://image.tmdb.org/t/p/w1280/9b3D6L42yQWrKrludIUhl0H3FaZ.jpg?width=1200)
Brain Crash Theatre [Dramatical Murder]
Aoba Seragaki
2019
Touken Ranbu: The Musical - Gou on Stage Zepp Tour Reboot
Murakumo Gou
2025
Anaden vol.2 "Nosferatu in the Mist - The Legend of Dracula"
Dracula/Vlad III
2021
Musical Touken Ranbu: Gou on Stage Zepp Tour Reboot
Murakumo Gou
2025
Nanashi: Seventh Special Cause of Death Department: The Stage
Tsuyobi
2023
Psychic Detective Yakumo: Bias of Thought
Yaguchi
2023
Musical Touken Ranbu: Gou on Stage ~Shinpen Satomi Hakkenden~
Murakumo Gou
2023