Updated Feb 20, 2026
Details
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Toshihiko Seki is known for acting.
Born in Sendai, Miyagi, Japan (age 63).
Recipient of the Kei Tomiyama Award.
Toshihiko Seki has 32 credits in our database.
Studied at Array.
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Filmography (32)
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Muzan Kibutsuji (voice)
I Parry Everything
Carew (voice)
The Most Heretical Last Boss Queen: From Villainess to Savior
Clark Darwin (voice)
Higurashi: When They Cry - NEW
Kyousuke Irie (voice)
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
Muzan Kibutsuji (voice)
Golden Kamuy
Kazuo Henmi (voice)
Saint Seiya: Saintia Sho
Scorpio Milo (voice)
The Ryuo's Work is Never Done!
Kiyotaki Kousuke (voice)
Mazinger Z: Infinity
Tetsuya Tsurugi (voice)
Showa Genroku Rakugo Shinju
Eisuke Higuchi (voice)
AWARDS (1)
B
Kei Tomiyama Award
2021
WON
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.
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Frequently Asked Questions
How old is Toshihiko Seki?
Toshihiko Seki is 63 years old, born on .
Where was Toshihiko Seki born?
Toshihiko Seki was born in Sendai, Miyagi, Japan.
What movies or shows has Toshihiko Seki been in?
Toshihiko Seki has 32 credits in our database. Notable titles include Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025), I Parry Everything (2024), The Most Heretical Last Boss Queen: From Villainess to Savior (2023), Higurashi: When They Cry - NEW (2020), Demon Slayer: Kimetsu no Yaiba - Sibling's Bond (2019).
What is Toshihiko Seki known for?
Toshihiko Seki is primarily known as an actor. 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…
Where can I find more information about Toshihiko Seki?
You can find more about Toshihiko Seki on IMDB, TMDB, Wikidata. Their full profile and filmography is available on this page.
