Actor
Toshihiko Seki
June 11, 1962 · Sendai, Japon
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.
Notable work
8.5Naruto Shippūden (2007)
as Iruka Umino (voice)
8.6Demon Slayer: Kimetsu no Yaiba (2019)
as Muzan Kibutsuji (voice)
8.4Naruto (2002)
as Iruka Umino (voice)
8Castle in the Sky (1986)
as Additional Voices (voice)
8.4Bleach (2004)
as Aaroniero Arruruerie (voice)
8.7Hunter x Hunter (2011)
as Wing (voice)
8.6Demon Slayer: Kimetsu no Yaiba Infinity Castle (2025)
as Muzan Kibutsuji (voice)
8.6Ranma ½ (1989)
as Mousse (voice)
8.5Mob Psycho 100 (2016)
as Morizo Ebihara (voice) and as Musashi Goda (voice)
7.4Road to Ninja: Naruto the Movie (2012)
as Iruka Umino (voice)
6.4Ocean Waves (1993)
as Yutaka Matsuno (voice)
8.4The Misfit of Demon King Academy (2020)
as Ahide Alobo Agatze (voice)
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