
Toshihiko Seki
Acting
Born 1962-06-11 · Sendai, Miyagi, Japan
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.
Known for

Ninja Boy Rantaro
1993 · TV

Naruto Shippūden
2007 · TV

Naruto
2002 · TV

Yawara!
1989 · TV

MÄR: Märchen Awakens Romance
2005 · TV

Golden Kamuy
2018 · TV

Mobile Suit Gundam SEED
2002 · TV

Future GPX Cyber Formula
1991 · TV

Aoki Densetsu Shoot!
1993 · TV

Saiyuki
2000 · TV

Kamen Rider Den-O
2007 · TV

Mobile Suit Gundam Wing
1995 · TV

The Legend of Zorro
1996 · TV

Glitter Force
2012 · TV

Bomberman B-Daman Bakugaiden
1998 · TV

Madö King Granzört
1989 · TV

Nadia: The Secret of Blue Water
1990 · TV

Higurashi: When They Cry - NEW
2020 · TV

Shurato
1989 · TV

Bビーダマン爆外伝V
1999 · TV

Kamen Rider Den-O: Imagin Anime
2008 · TV

Sekirei
2008 · TV

Zillion
1987 · TV

F
1988 · TV

Samurai Champloo
2004 · TV

Rurouni Kenshin
2023 · TV

Cross Ange: Rondo of Angels and Dragons
2014 · TV

Hyper Police
1997 · TV

The Irresponsible Captain Tylor
1993 · TV

Showa Genroku Rakugo Shinju
2016 · TV

Hakugei: Legend of the Moby Dick
1997 · TV

My-Hime
2004 · TV

Outlaw Star
1998 · TV

Cookin' Idol Ai! Mai! Main!
2009 · TV

Shonen Onmyouji
2006 · TV

Dash! Yonkuro
1989 · TV

Ranma ½
1989 · TV

Gin'yuu Mokushiroku Meine Liebe
2004 · TV

Hunter x Hunter
2011 · TV

Demon Slayer: Kimetsu no Yaiba
2019 · TV

B'T X
1996 · TV

The Most Heretical Last Boss Queen: From Villainess to Savior
2023 · TV

Paranoia Agent
2004 · TV

Hakkenden: Legend of the Dog Warriors
1990 · TV

Saint Seiya: Soul of Gold
2015 · TV

PROJECT R.E.D.
2026 · TV

I Parry Everything
2024 · TV

SANDA
2025 · TV

Requiem from the Darkness
2003 · TV

Descendants of Darkness
2000 · TV

The Ryuo's Work is Never Done!
2018 · TV

Katanagatari
2010 · TV

Psychic Detective Yakumo
2010 · TV

Reign: The Conqueror
1999 · TV

Gingitsune: Messenger Fox of the Gods
2013 · TV

My Ribdiculous Reincarnation
2026 · TV

Saint Seiya: The Hades Chapter
2002 · TV

To Be Hero
2016 · TV

HIGH CARD
2023 · TV

Mirage of Blaze
2002 · TV