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.
Acting credits 113 titles
My Ribdiculous Reincarnation
Series
2026
7.2
SANDA
as Hifumi Ōshibu (voice)
Series
2025
7.5
Demon Slayer: Kimetsu no Yaiba Infinity Castle
as Muzan Kibutsuji (voice)
Film
2025
8.8
Nintama Rantarō: Invincible Master of the Dokutake Ninja
as Hansuke Doi (voice)
Film
2024
7.6
I Parry Everything
as Carew (voice)
Series
2024
7.8
The Birth of Kitaro: The Mystery of GeGeGe
as Kitarou's Father (voice)
Film
2023
7.4
Onimusha
as Kojiro Sasaki (voice)
Series
2023
7.5
Black Clover: Sword of the Wizard King
as Conrad Leto (voice)
Film
2023
8.1
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
as Momotaros (voice)
Series
2022
9.5
Higurashi: When They Cry - NEW
as Kyousuke Irie (voice)
Series
2020–2021
7.2
Kamen Rider Den-O: The Birth of Pretty Den-O!
as Momotaros (voice)
Film
2020
8.0
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
as Muzan Kibutsuji (voice)
Film
2019
7.9
Saint Seiya: Saintia Sho
as Scorpio Milo (voice)
Series
2018–2019
7.6
Golden Kamuy
as Kazuo Henmi (voice)
Series
2018–
7.6
The Ryuo's Work is Never Done!
as Kiyotaki Kousuke (voice)
Series
2018
6.5
Mazinger Z: Infinity
as Tetsuya Tsurugi (voice)
Film
2017
6.9
THE REFLECTION
as Michael Holden (voice)
Series
2017
5.2
The Laughing Salesman NEW
as Shisao Kihara(Story2)
Series
2017
6.2
Kamen Rider × Super Sentai: Ultra Super Hero Wars
as Momotaros - Kamen Rider Den-O Sword Form (voice)
Film
2017
5.7
To Be Hero
as Chinese Tohoku Muffler (voice)
Series
2016–2018
6.1
Naruto OVA 12: The Day Naruto Became Hokage
as Iruka Umino (voice)
Film
2016
7.5
Descending Stories
as Eisuke Higuchi (voice)
Series
2016–2017
8.0
Saint Seiya: Soul of Gold
as Scorpio Milo (voice)
Series
2015
8.0
Cross Ange: Rondo of Angels and Dragons
as Embryo (voice)
Series
2014–2015
8.2
Hunter x Hunter: The Last Mission
as Wing (voice)
Film
2013
6.9
Gingitsune: Messenger Fox of the Gods
as Tatsuo Saeki (voice)
Series
2013
7.3
Triple Combination: Transformers Go!
as Gekisōmaru (voice)
Series
2013–2014
8.0
Road to Ninja: Naruto the Movie
as Iruka Umino (voice)
Film
2012
7.4
Kamen Rider × Super Sentai: Super Hero Wars
as Momotaros - Kamen Rider Den-O Sword Form (voice)
Film
2012
6.6
Mobile Suit Gundam SEED HD Remaster
as Rey Za Burrel (voice), Rau Le Creuset (voice)
Series
2011–
7.0
Detective Conan: Quarter of Silence
as Shogo Hikawa (voice)
Film
2011
7.1
Saiyuki Gaiden
as Konzen Dōji (voice)
Series
2011–2013
4.7
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
as Hansuke Doi (voice)
Film
2011
5.6
Psychic Detective Yakumo
as Isshin Saitō
Series
2010
7.0
Katanagatari
as Umigame Maniwa (voice)
Series
2010
7.2
Dogs: Bullets & Carnage
as Ernst Rammsteiner
Series
2009
6.2
Cookin' Idol Ai! Mai! Main!
as 柊修
Series
2009
8.0
Kamen Rider Kiva: King of the Castle in the Demon World
as Penetentiary Officer Sanjo
Film
2008
6.9
Sekirei
as Hiroto Minaka
Series
2008–2010
7.4
Kamen Rider Den-O: Imagin Anime
as Momotaros (voice)
Series
2008–2010
6.0
Saiyuki Reload: Burial
as Genjō Sanzō (voice)
Series
2007
5.6
Kamen Rider Den-O
as Momotaros (voice)
Series
2007–2008
8.6
Shonen Onmyouji
Series
2006–2007
7.0
Gin'yuu Mokushiroku Meine Liebe
as Ludwig Herzog von Mohn nahe Liechtenstein (voice)
Series
2004–2006
4.5
My-Hime
as Reito Kanzaki (voice)
Series
2004–2005
6.5
Samurai Champloo
as Yamane (voice)
Series
2004–2005
8.3
Paranoia Agent
as Mitsuhiro Maniwa (voice)
Series
2004
7.9
Requiem from the Darkness
as Momosuke Yamaoka (voice)
Series
2003
6.2
Mobile Suit Gundam SEED
as Rey Za Burrel (voice)
Series
2002–2005
7.6
Naruto
as Iruka Umino (voice)
Series
2002–2007
8.4
.hack//Liminality
Series
2002–2003
7.3
Angelique: Twin Collection
as Luva (voice)
Series
2002–2003
Mirage of Blaze
as Takaya Ohgi (voice)
Series
2002
5.3
Saiyuki: Requiem
as Genjo Sanzo (voice)
Film
2001
6.4
Descendants of Darkness
as Yutaka Watari (voice)
Series
2000
6.3
Saiyuki
as Genjo Sanzo (voice)
Series
2000–2022
6.3
Reign: The Conqueror
as Alexander (voice)
Series
1999
6.2
Pet Shop of Horrors
as Count D (voice)
Series
1999
6.9
Harlock Saga - The Ring of the Nibelungs
Series
1999
7.3
Nightwalker: The Midnight Detective
as Bait
Series
1998
6.2
Outlaw Star
as Fred (voice)
Series
1998–1999
7.5
Twilight of the Dark Master
as Shijo Tsunami (voice)
Film
1997
5.4
Dragoon
as Rain Keeves Fearudo (voice)
Series
1997
4.5
Hakugei: Legend of the Moby Dick
Series
1997
8.3
Hyper Police
as Sakunoshin Chikura
Series
1997
9.2
X
as Shougo
Film
1996
6.2
B'T X
as Quatro (voice)
Series
1996–1998
8.3
The Legend of Zorro
as Don Diego de la Vega / Zorro
Series
1996–1997
6.9
Special Duty Combat Unit Shinesman
as Shujin Seki (voice)
Series
1996
7.0
Mobile Suit Gundam Wing
as Duo Maxwell (voice)
Series
1995–1996
7.9
Wild 7
as Dairoku Hiba
Series
1994–1995
8.0
Wild 7: Biker Knights
as Dairoku Hiba
Film
1994
2.0
Dorami-chan: A Blue Straw Hat
as Crow (voice)
Film
1994
6.2
Genocyber
as Sakomizu (voice)
Film
1994
5.6
Natsuki Crisis
as Kyōtarō Himuro
Series
1994
5.5
Please Save My Earth
as Mikuro Yakushimaru (voice)
Series
1993–1994
4.8
Aoki Densetsu Shoot!
as Akihiko Himuro (voice)
Series
1993–1994
7.1
Ocean Waves
as Yutaka Matsuno (voice)
Film
1993
6.4
Ninja Scroll
as Yurimaru (voice)
Film
1993
7.8
The Irresponsible Captain Tylor
as Ru Baraba Dom
Series
1993
7.6
D-1 Devastator
as 谷田辺了
Series
1992–1993
7.0
Ai no Kusabi
as Riki (voice)
Series
1992–1994
5.9
Bastard!!
Series
1992–1993
5.5
Ranma 1/2 the Movie 2: Nihao My Concubine
as Mousse (voice)
Film
1992
8.0
Princess Army: Wedding Combat
as Yuuya Hashiba
Series
1992
7.0
Nyūin Bokki Monogatari Ojiji ni!
Series
1991–
Here Is Greenwood
as Shinobu Tezuka (voice)
Series
1991–1993
7.3
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
as Mousse (voice)
Film
1991
7.2
Flaming Rugby Boy: Dodge Danpei
as Nikaidou
Series
1991–1992
8.1
Izumo
as Izumo (voice)
Series
1991
5.0
Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
as Shurato
Series
1991–1992
8.0
Detonator Orgun
as Knock
Series
1991–1992
6.9
Blazing Transfer Student
as Noboru Takizawa (voice)
Series
1991
6.7
Akai Hayate
Series
1991
4.3
Future GPX Cyber Formula
as Jotaro Kaga
Series
1991–2000
8.7
The Hakkenden: Legend of the Dog Warriors
as Shino Inuzuka (voice)
Series
1990–1995
7.2
Goddamn
as Hans Schultz
Series
1990
8.0
Goddamn
as Hans Schultz
Film
1990
Nadia: The Secret of Blue Water
as Fejto (voice)
Series
1990–1991
7.4
Yawara!
as Matsuda / Eiji (voice)
Series
1989–1992
6.7
Darkness of the Sea, Shadow of the Moon
as Katsuyuki Touma (voice)
Series
1989
6.0
Dash! Yonkuro
Series
1989–1990
6.8
Angel Cop
as Tachihara (voice)
Film
1989
6.2
Madö King Granzört
as Grunwald
Series
1989–1990
8.6
Shurato
as Shurato
Series
1989–1990
7.8
Nightsong of Splendor
Series
1989
6.5
Hades Project Zeorymer
as (voice)
Series
1988–1990
6.0
Dragon Century
as Carmine
Series
1988
7.1
Sunlight All Around! Ka - su - mi: You Were in My Dreams
as Reporter B (voice)
Film
1988
3.0
Balthus: Tia's Radiance
as Eud (voice)
Film
1988
5.0
F
as Gunma Akagi (voice)
Series
1988
7.0
Zillion
as JJ
Series
1987
7.0
Campus Special Investigator Hikaruon
as Hikaru Shihodo / Hikaruon (voice)
Film
1987
7.3
이 필터에 맞는 작품이 없어요.
아직 발표된 작품이 없어요.
대표작
8.4
Series
Naruto
Iruka Umino (voice)
2002–2007
6.7
Series
Yawara!
Matsuda / Eiji (voice)
1989–1992
7.2
Series
Higurashi: When They Cry - NEW
Kyousuke Irie (voice)
2020–2021
7.6
Series
Golden Kamuy
Kazuo Henmi (voice)
2018–
6.3
Series
Saiyuki
Genjo Sanzo (voice)
2000–2022
8.0
Series
Descending Stories
Eisuke Higuchi (voice)
2016–2017
8.8
Film
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Muzan Kibutsuji (voice)
2025
7.6
Series
Mobile Suit Gundam SEED
Rey Za Burrel (voice)
2002–2005
7.4
Series
Sekirei
Hiroto Minaka
2008–2010
7.4
Series
Nadia: The Secret of Blue Water
Fejto (voice)
1990–1991
7.9
Series
Mobile Suit Gundam Wing
Duo Maxwell (voice)
1995–1996
8.7
Series
Future GPX Cyber Formula
Jotaro Kaga
1991–2000
8.3
Series
Samurai Champloo
Yamane (voice)
2004–2005
7.2
Series
The Hakkenden: Legend of the Dog Warriors
Shino Inuzuka (voice)
1990–1995
8.2
Series
Cross Ange: Rondo of Angels and Dragons
Embryo (voice)
2014–2015
8.0
Series
Saint Seiya: Soul of Gold
Scorpio Milo (voice)
2015
7.9
Series
Paranoia Agent
Mitsuhiro Maniwa (voice)
2004
8.1
Film
Black Clover: Sword of the Wizard King
Conrad Leto (voice)
2023
6.9
Series
The Legend of Zorro
Don Diego de la Vega / Zorro
1996–1997
0.0
Series
Nyūin Bokki Monogatari Ojiji ni!
1991–
6.5
Series
The Ryuo's Work is Never Done!
Kiyotaki Kousuke (voice)
2018
7.5
Series
SANDA
Hifumi Ōshibu (voice)
2025
7.2
Series
My Ribdiculous Reincarnation
2026
7.2
Series
Katanagatari
Umigame Maniwa (voice)
2010
7.6
Series
Saint Seiya: Saintia Sho
Scorpio Milo (voice)
2018–2019
7.8
Series
I Parry Everything
Carew (voice)
2024
6.5
Series
My-Hime
Reito Kanzaki (voice)
2004–2005
7.3
Series
Gingitsune: Messenger Fox of the Gods
Tatsuo Saeki (voice)
2013
7.6
Series
The Irresponsible Captain Tylor
Ru Baraba Dom
1993
8.6
Series
Kamen Rider Den-O
Momotaros (voice)
2007–2008
3.0
Film
Sunlight All Around! Ka - su - mi: You Were in My Dreams
Reporter B (voice)
1988
5.3
Series
Mirage of Blaze
Takaya Ohgi (voice)
2002
6.1
Series
To Be Hero
Chinese Tohoku Muffler (voice)
2016–2018
9.2
Series
Hyper Police
Sakunoshin Chikura
1997
6.2
Series
The Laughing Salesman NEW
Shisao Kihara(Story2)
2017
7.5
Series
Outlaw Star
Fred (voice)
1998–1999
6.3
Series
Descendants of Darkness
Yutaka Watari (voice)
2000
8.6
Series
Madö King Granzört
Grunwald
1989–1990
8.3
Series
Hakugei: Legend of the Moby Dick
1997
7.1
Series
Aoki Densetsu Shoot!
Akihiko Himuro (voice)
1993–1994
7.0
Series
Psychic Detective Yakumo
Isshin Saitō
2010
7.1
Film
Detective Conan: Quarter of Silence
Shogo Hikawa (voice)
2011
7.4
Film
The Birth of Kitaro: The Mystery of GeGeGe
Kitarou's Father (voice)
2023
6.4
Film
Ocean Waves
Yutaka Matsuno (voice)
1993
5.6
Film
Genocyber
Sakomizu (voice)
1994
6.2
Film
Dorami-chan: A Blue Straw Hat
Crow (voice)
1994
5.6
Film
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
Hansuke Doi (voice)
2011
6.2
Series
Requiem from the Darkness
Momosuke Yamaoka (voice)
2003
7.8
Series
Shurato
Shurato
1989–1990
6.2
Series
Nightwalker: The Midnight Detective
Bait
1998
4.5
Series
Gin'yuu Mokushiroku Meine Liebe
Ludwig Herzog von Mohn nahe Liechtenstein (voice)
2004–2006
6.0
Series
Hades Project Zeorymer
(voice)
1988–1990
7.0
Series
Zillion
JJ
1987
6.2
Film
Angel Cop
Tachihara (voice)
1989
0.0
Series
Angelique: Twin Collection
Luva (voice)
2002–2003
7.8
Film
Ninja Scroll
Yurimaru (voice)
1993
7.3
Series
Here Is Greenwood
Shinobu Tezuka (voice)
1991–1993
7.3
Series
.hack//Liminality
2002–2003
6.4
Film
Saiyuki: Requiem
Genjo Sanzo (voice)
2001
5.9
Series
Ai no Kusabi
Riki (voice)
1992–1994
6.8
Series
Dash! Yonkuro
1989–1990
7.5
Series
Onimusha
Kojiro Sasaki (voice)
2023
6.9
Film
Hunter x Hunter: The Last Mission
Wing (voice)
2013
7.3
Film
Campus Special Investigator Hikaruon
Hikaru Shihodo / Hikaruon (voice)
1987
4.8
Series
Please Save My Earth
Mikuro Yakushimaru (voice)
1993–1994
6.9
Film
Kamen Rider Kiva: King of the Castle in the Demon World
Penetentiary Officer Sanjo
2008
6.2
Series
Dogs: Bullets & Carnage
Ernst Rammsteiner
2009
2.0
Film
Wild 7: Biker Knights
Dairoku Hiba
1994
6.2
Series
Reign: The Conqueror
Alexander (voice)
1999
7.4
Film
Road to Ninja: Naruto the Movie
Iruka Umino (voice)
2012
5.2
Series
THE REFLECTION
Michael Holden (voice)
2017
6.0
Series
Kamen Rider Den-O: Imagin Anime
Momotaros (voice)
2008–2010
8.0
Series
Triple Combination: Transformers Go!
Gekisōmaru (voice)
2013–2014
8.3
Series
B'T X
Quatro (voice)
1996–1998
8.0
Film
Ranma 1/2 the Movie 2: Nihao My Concubine
Mousse (voice)
1992
6.9
Series
Detonator Orgun
Knock
1991–1992
6.6
Film
Kamen Rider × Super Sentai: Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
2012
4.7
Series
Saiyuki Gaiden
Konzen Dōji (voice)
2011–2013
5.6
Series
Saiyuki Reload: Burial
Genjō Sanzō (voice)
2007
7.9
Film
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
Muzan Kibutsuji (voice)
2019
8.0
Series
Wild 7
Dairoku Hiba
1994–1995
0.0
Film
Goddamn
Hans Schultz
1990
7.0
Series
Shonen Onmyouji
2006–2007
6.2
Film
X
Shougo
1996
7.0
Series
F
Gunma Akagi (voice)
1988
8.1
Series
Flaming Rugby Boy: Dodge Danpei
Nikaidou
1991–1992
5.5
Series
Bastard!!
1992–1993
7.0
Series
D-1 Devastator
谷田辺了
1992–1993
5.0
Film
Balthus: Tia's Radiance
Eud (voice)
1988
6.9
Film
Mazinger Z: Infinity
Tetsuya Tsurugi (voice)
2017
6.9
Series
Pet Shop of Horrors
Count D (voice)
1999
7.0
Series
Special Duty Combat Unit Shinesman
Shujin Seki (voice)
1996
8.0
Series
Goddamn
Hans Schultz
1990
7.2
Film
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
Mousse (voice)
1991
5.0
Series
Izumo
Izumo (voice)
1991
6.7
Series
Blazing Transfer Student
Noboru Takizawa (voice)
1991
7.3
Series
Harlock Saga - The Ring of the Nibelungs
1999
8.0
Series
Cookin' Idol Ai! Mai! Main!
柊修
2009
5.4
Film
Twilight of the Dark Master
Shijo Tsunami (voice)
1997
6.5
Series
Nightsong of Splendor
1989
5.5
Series
Natsuki Crisis
Kyōtarō Himuro
1994
9.5
Series
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
Momotaros (voice)
2022
7.0
Series
Mobile Suit Gundam SEED HD Remaster
Rey Za Burrel (voice), Rau Le Creuset (voice)
2011–
7.6
Film
Nintama Rantarō: Invincible Master of the Dokutake Ninja
Hansuke Doi (voice)
2024
5.7
Film
Kamen Rider × Super Sentai: Ultra Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
2017
4.3
Series
Akai Hayate
1991
7.5
Film
Naruto OVA 12: The Day Naruto Became Hokage
Iruka Umino (voice)
2016
7.0
Series
Princess Army: Wedding Combat
Yuuya Hashiba
1992
8.0
Series
Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
Shurato
1991–1992
6.0
Series
Darkness of the Sea, Shadow of the Moon
Katsuyuki Touma (voice)
1989
7.1
Series
Dragon Century
Carmine
1988
4.5
Series
Dragoon
Rain Keeves Fearudo (voice)
1997
8.0
Film
Kamen Rider Den-O: The Birth of Pretty Den-O!
Momotaros (voice)
2020