Portrait of Toshihiko Seki

Toshihiko Seki

Acting

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.

Born: June 11, 1962

Place of Birth: Sendai, Miyagi, Japan

Filmography

2025
SANDA

as Hifumi Ōshibu (voice)

2025
U Takes Terra

as Chongyue (Voice)

2025
Mashin Creator Wataru

as Mr. Liar (voice)

2025
I Have a Crush at Work

as Pastor (voice)

2024
Good Bye, Dragon Life

as Dio (voice)

2024
Ranma1/2

as Mousse (voice)

2024
I Parry Everything

as Carew (voice)

2024
Kaiju No. 8

as Kaiju No. 11 (voice)

2023
2023
Onimusha

as Kojiro Sasaki (voice)

2023
PLUTO

as Sahad (voice)

2023
PLUTO

as Pluto (voice)

2023
Rurouni Kenshin

as Narration (voice)

2023
2023
HIGH CARD

as Norman Kingstat (voice)

2022
2021
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles

as Momotaros (voice) / Kamen Rider Den-O (voice)

2020
Higurashi: When They Cry - NEW

as Kyousuke Irie (voice)

2020
The Misfit of Demon King Academy

as Ahide Alobo Agatze (voice)

2019
SAINT SEIYA: Knights of the Zodiac

as Scorpio Milo (voice)

2019
Sarazanmai

as Yuri Kamome

2019
Demon Slayer: Kimetsu no Yaiba

as Muzan Kibutsuji (voice)

2019
Star☆Twinkle PreCure

as Toto Hagoromo (voice)

2018
Kamen Rider Heisei Generations Forever

as Momotaros / Kamen Rider Den-O Sword Form (voice)

2018
Saint Seiya: Saintia Sho

as Scorpio Milo (voice)

2018
Golden Kamuy

as Kazuo Henmi (voice)

2018
2018
The Ryuo's Work is Never Done!

as Kiyotaki Kousuke (voice)

2017
Mazinger Z: Infinity

as Tetsuya Tsurugi (voice)

2017
THE REFLECTION

as Michael Holden (voice)

2017
The Laughing Salesman NEW

as Shisao Kihara(Story2)

2017
Kamen Rider × Super Sentai: Ultra Super Hero Wars

as Momotaros - Kamen Rider Den-O Sword Form (voice)

2016
To Be Hero

as Chinese Tohoku Muffler (voice)

2016
Mob Psycho 100

as Morizo Ebihara (voice)

2016
Mob Psycho 100

as Musashi Goda (voice)

2016
Showa Genroku Rakugo Shinju

as Eisuke Higuchi (voice)

2015
Saint Seiya: Soul of Gold

as Scorpio Milo (voice)

2014
Space Dandy

as Public Prosecutor (voice)

2013
2013
Higurashi: When They Cry - Outbreak

as Kyousuke Irie (voice)

2013
2012
Road to Ninja: Naruto the Movie

as Iruka Umino (voice)

2012
Kamen Rider × Super Sentai: Super Hero Wars

as Momotaros - Kamen Rider Den-O Sword Form (voice)

2012
Glitter Force

as Hiroshi Hoshizora

2011
Guilty Crown

as Kurosu Ouma (voice)

2011
Hunter x Hunter

as Wing (voice)

2011
2011
OOO, Den-O, All Riders: Let's Go Kamen Riders

as Momotaros / Kamen Rider Den-O Sword Form (voice)

2011
Saiyuki Gaiden

as Konzen Dōji (voice)

2010
Psychic Detective Yakumo

as Isshin Saitō

2010
Katanagatari

as Umigame Maniwa (voice)

2010
Kamen Rider Decade: Final Stage

as Momotaros / Kamen Rider Den-O (Sword Form)

2009
10th Anniversary Project: Masked Rider LIVE & SHOW

as Kamen Rider Den-O Sword Form (voice)

2009
Kamen Rider Decade: All Riders vs. Dai-Shocker

as Momotaros / Kamen Rider Den-O (voice)

2009
Dogs: Bullets & Carnage

as Ernst Rammsteiner

2008
A Certain Magical Index

as Aleister Crowley (voice)

2008
Blade of the Immortal

as Souri (voice)

2008
Sekirei

as Hiroto Minaka

2008
2007
Momotaros' Summer Vacation

as Momotaros (voice)

2007
Saiyuki Reload: Burial

as Genjō Sanzō (voice)

2007
Naruto Shippūden

as Iruka Umino (voice)

2007
Kamen Rider Den-O

as Momotaros (voice)

2006
Higurashi: When They Cry

as Kyousuke Irie (voice)

2005
2004
Gin'yuu Mokushiroku Meine Liebe

as Ludwig Herzog von Mohn nahe Liechtenstein (voice)

2004
Bleach

as Aaroniero Arruruerie (voice)

2004
My-Hime

as Reito Kanzaki (voice)

2004
Samurai Champloo

as Yamane (voice)

2004
Paranoia Agent

as Mitsuhiro Maniwa (voice)

2003
Requiem from the Darkness

as Momosuke Yamaoka (voice)

2002
Mobile Suit Gundam SEED

as Rau Le Creuset (voice)

2002
Mobile Suit Gundam SEED

as Rey Za Burrel (voice)

2002
Naruto

as Iruka Umino (voice)

2002
Animation Store Manager

as Ryuu Raiba (voice)

2002
2002
Mirage of Blaze

as Takaya Ohgi (voice)

2001
Saiyuki: Requiem

as Genjo Sanzo (voice)

2001
Vampire Hunter D: Bloodlust

as Grove Marcus (voice)

2000
Descendants of Darkness

as Yutaka Watari (voice)

2000
Saiyuki

as Konzen Douji (voice)

2000
Saiyuki

as Genjo Sanzo (voice)

2000
Baby Felix & Friends

as Felix The Cat

1999
Reign: The Conqueror

as Alexander (voice)

1999
Pet Shop of Horrors

as Count D (voice)

1998
Gundam Wing: The Endless Waltz

as Duo Maxwell (voice)

1998
TRIGUN

as Legato Bluesummers (voice)

1998
Outlaw Star

as Fred (voice)

1997
Twilight of the Dark Master

as Shijo Tsunami (voice)

1997
Dragoon

as Rain Keeves Fearudo (voice)

1997
Hyper Police

as Sakunoshin Chikura

1996
Ultraman Super Fighter Legend

as Ultraseven / Ultraman Leo (voice)

1996
X: The Movie

as Shougo

1996
B'T X

as Quatro (voice)

1996
The Legend of Zorro

as Don Diego de la Vega / Zorro

1996
1996
The End of the Century Darling

as Todorokki Kouhei (voice)

1995
Bio Hunter

as Komada

1995
Mobile Suit Gundam Wing

as Duo Maxwell (voice)

1994
Wild 7

as Dairoku Hiba

1994
Wild 7: Biker Knights

as Dairoku Hiba

1994
I'm Not an Angel!

as Bunta Kouno (voice)

1994
Love Wedge 2

as Riki (voice)

1994
Genocyber

as Sakomizu (voice)

1994
Natsuki Crisis

as Kyōtarō Himuro

1993
Please Save My Earth

as Mikuro Yakushimaru (voice)

1993
Black Jack

as Tokio Umetani (voice)

1993
Aoki Densetsu Shoot!

as Akihiko Himuro

1993
Ocean Waves

as Yutaka Matsuno (voice)

1993
Suikoden Demon Century

as Takateru Suga (voice)

1993
1993
Ninja Scroll

as Yurimaru (voice)

1993
Ninja Boy Rantaro

as Hansuke Doi

1992
1992
D-1 Devastator

as 谷田辺了

1992
1992
Love Wedge 1

as Riki (voice)

1992
Ai no Kusabi

as Riki (voice)

1992
1992
1991
Moonlight Pierce

as Hiroshi Takama (voice)

1991
Here Is Greenwood

as Shinobu Tezuka (voice)

1991
Handsome Girl

as Ichiya Kumagai (voice)

1991
Izumo

as Izumo (voice)

1991
1991
Trusty Ginjiro

as Hideki Mitsui (voice)

1991
Blazing Transfer Student

as Noboru Takizawa (voice)

1991
1991
1990
1990
Marina the Manga Artist Goes to Camelot

as Bijomaru Shizuka (voice)

1990
Goddamn

as Hans Schultz

1990
Goddamn

as Hans Schultz

1990
Heart-Coloured Killer Ticket

as Chuta Misora (voice)

1989
Demon Hunter Makaryūdo

as Shou Kurogane (voice)

1989
Yawara!

as Matsuda / Eiji (voice)

1989
Darkness of the Sea, Shadow of the Moon

as Katsuyuki Touma (voice)

1989
Angel Cop

as Tachihara (voice)

1989
Cinderella Express

as Yuji Shimano

1989
Ranma ½

as Mousse (voice)

1989
1989
Shurato

as Shurato

1989
Hades Project: Zeorymer Extinction

as Masato Akitsu / Masaki Kihara (voice)

1988
Hades Project: Zeorymer Separation

as Masaki Kihara (voice)

1988
Hades Project: Zeorymer Separation

as Masato Akitsu (voice)

1988
1988
Dragon Century

as Carmine (voice)

1988
Zillion: Burning Night

as J.J. (voice)

1988
Spirit Warrior

as Kujaku (voice)

1988
1988
F

as Gunma Akagi (voice)

1987
The Samurai

as Takeshi Chimatsuri

1987
TO-Y

as Shouji (voice)

1987
Zillion

as JJ

1987
1987
Campus Special Investigator Hikaruon

as Hikaru Shihodo / Hikaruon (voice)

1986
Castle in the Sky

as Additional Voices (voice)

1986
Call Me Tonight

as Hayata (voice)

1985
Magical Emi, the Magic Star

as Customer A (voice)

1971
Kamen Rider

as Kamen Rider Den-O (voice)

1971
Kamen Rider

as Momotaros (voice)