People
Toshihiko Seki
Acting · follow into films and chains
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.
Notable films
Where to start
Highlights from credits and KinoChain journeys.
Demon Slayer: Kimetsu no Yaiba Infinity Castle
As Muzan Kibutsuji (voice)
Izumo
As Izumo (voice)
Castle in the Sky
As Additional Voices (voice)
Black Clover: Sword of the Wizard King
As Conrad Leto (voice)
Dragon Century
As Carmine
Onimusha
As Kojiro Sasaki (voice)
THE REFLECTION
As Michael Holden (voice)
Katanagatari
As Umigame Maniwa (voice)
Chains
KinoChain journeys
Public chains that pass through their films — or name them as a bridge.
No public chains feature this person yet.
Related people
Collaborators & neighbours
Acted
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025 · Muzan Kibutsuji (voice)
Onimusha
2023 · Kojiro Sasaki (voice)
Black Clover: Sword of the Wizard King
2023 · Conrad Leto (voice)
THE REFLECTION
2017 · Michael Holden (voice)
Katanagatari
2010 · Umigame Maniwa (voice)
Izumo
1991 · Izumo (voice)
Dragon Century
1988 · Carmine
Castle in the Sky
1986 · Additional Voices (voice)