Toshihiko Seki
Biography
Toshihiko Seki, born on June 11, 1962, in Sendai, Miyagi Prefecture, Japan, is a celebrated Japanese voice actor, actor, singer, and narrator. He has been active in the entertainment industry since 1983 and is affiliated with 81 Produce, a prominent talent agency.
Seki is known for his versatility, often voicing characters with serious or easily agitated personalities, such as Duo Maxwell in Mobile Suit Gundam Wing, Iruka Umino in Naruto, Kaien Shiba in Bleach and Riki in Ai no Kusabi. He has also portrayed deranged villains like Legato Bluesummers in Trigun and Muzan Kibutsuji in Demon Slayer: Kimetsu no Yaiba. One of his most iconic roles is Momotaros in Kamen Rider Den-O, a character he has reprised in numerous productions.
In addition to his work in anime, Seki has contributed to video games, movies, and dubbing. His talent and dedication have earned him recognition, including being ranked as the 9th favorite voice actor in the 26th Annual Reader's Poll by Animage Magazine in 2004.
Filmography
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
2026
as Cosmo Gavarion System Voice / Gavarion Trigger System Voice
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
2026
as Gavarion Trigger System Voice (voice)
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025
as Muzan Kibutsuji (voice)
Nintama Rantarō: Invincible Master of the Dokutake Ninja
2024
as Hansuke Doi (voice)
The Birth of Kitaro: The Mystery of GeGeGe
2023
as Kitarou's Father (voice)
Black Clover: Sword of the Wizard King
2023
as Conrad Leto (voice)
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
2022
as Muzan Kibutsuji (voice)
My Hero Academia: World Heroes' Mission
2021
as Eddie Soul (voice)
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
2021
as Momotaros (voice) / Kamen Rider Den-O (voice)
Kamen Rider Den-O: The Birth of Pretty Den-O!
2020
as Momotaros (voice)
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019
as Muzan Kibutsuji (voice)
Kamen Rider Heisei Generations Forever
2018
as Momotaros / Kamen Rider Den-O Sword Form (voice)
Mazinger Z: Infinity
2017
as Tetsuya Tsurugi (voice)
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2017
as Momotaros
Kamen Rider × Super Sentai: Ultra Super Hero Wars
2017
as Momotaros - Kamen Rider Den-O Sword Form (voice)
Naruto OVA 12: The Day Naruto Became Hokage
2016
as Iruka Umino (voice)
Mobile Suit Gundam: The Origin II - Artesia's Sorrow
2015
as Char Aznable (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014
as Kamen Rider Den-O Sword Form (voice)
Hunter x Hunter: The Last Mission
2013
as Wing (voice)
Higurashi: When They Cry - Outbreak
2013
as Kyousuke Irie (voice)
Road to Ninja: Naruto the Movie
2012
as Iruka Umino (voice)
Kamen Rider × Super Sentai: Super Hero Wars
2012
as Momotaros - Kamen Rider Den-O Sword Form (voice)
Detective Conan: Quarter of Silence
2011
as Shogo Hikawa (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders
2011
as Momotaros / Kamen Rider Den-O Sword Form (voice)