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Toshihiko Seki

Toshihiko Seki

Acting1962Sendai, Miyagi, Japan

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 History

2026
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
as Gavarion Trigger System Voice (voice)
2025
Ranma1/2
TVas Mousse (voice)• 4 eps
Kaiju No. 8
TVas Kaiju No. 11 (voice)• 1 eps
I Have a Crush at Work
TVas Pastor (voice)• 1 eps
SANDA
TVas Hifumi Ōshibu (voice)• 12 eps
U Takes Terra
TVas Chongyue (Voice)
Mashin Creator Wataru
TVas Mr. Liar (voice)• 2 eps
2024
The Misfit of Demon King Academy
TVas Ahide Alobo Agatze (voice)• 6 eps
I Parry Everything
TVas Carew (voice)• 12 eps
Good Bye, Dragon Life
TVas Dio (voice)
2023
PLUTO
TVas Sahad (voice)• 1 eps
Rurouni Kenshin
TVas Narration (voice)• 21 eps
Onimusha
TVas Kojiro Sasaki (voice)
HIGH CARD
TVas Norman Kingstat (voice)• 12 eps
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
TVas Kyousuke Irie (voice)• 39 eps
2019
SAINT SEIYA: Knights of the Zodiac
TVas Scorpio Milo (voice)• 1 eps
Demon Slayer: Kimetsu no Yaiba
TVas Muzan Kibutsuji (voice)• 13 eps
Sarazanmai
TVas Yuri Kamome• 1 eps
Star☆Twinkle PreCure
TVas Toto Hagoromo (voice)• 3 eps
2018
Kamen Rider Heisei Generations Forever
as Momotaros / Kamen Rider Den-O Sword Form (voice)
SWORD GAI: The Animation
TVas Miura Takuma
Saint Seiya: Saintia Sho
TVas Scorpio Milo (voice)
The Ryuo's Work is Never Done!
TVas Kiyotaki Kousuke (voice)• 12 eps
Golden Kamuy
TVas Kazuo Henmi (voice)• 59 eps
To Be Hero
TVas Chinese Tohoku Muffler (voice)• 12 eps
2017
Mazinger Z: Infinity
as Tetsuya Tsurugi (voice)
Kamen Rider × Super Sentai: Ultra Super Hero Wars
as Momotaros - Kamen Rider Den-O Sword Form (voice)
The Laughing Salesman NEW
TVas Shisao Kihara(Story2)
THE REFLECTION
TVas Michael Holden (voice)
2016
Mob Psycho 100
TVas Musashi Goda (voice) / Morizo Ebihara (voice)• 14 eps
Showa Genroku Rakugo Shinju
TVas Eisuke Higuchi (voice)• 25 eps
2015
Saint Seiya: Soul of Gold
TVas Scorpio Milo (voice)• 13 eps
2014
Cross Ange: Rondo of Angels and Dragons
TVas Embryo (voice)• 25 eps
Space Dandy
TVas Public Prosecutor (voice)• 1 eps
2013
Higurashi: When They Cry - Outbreak
as Kyousuke Irie (voice)
Gingitsune: Messenger Fox of the Gods
TVas Tatsuo Saeki (voice)
Triple Combination: Transformers Go!
TVas Gekisōmaru (voice)
2012
Road to Ninja: Naruto the Movie
as Iruka Umino (voice)
Kamen Rider × Super Sentai: Super Hero Wars
as Momotaros - Kamen Rider Den-O Sword Form (voice)
Hunter x Hunter
TVas Wing (voice)• 10 eps
Glitter Force
TVas Hiroshi Hoshizora• 48 eps
Guilty Crown
TVas Kurosu Ouma (voice)• 1 eps
2011
OOO, Den-O, All Riders: Let's Go Kamen Riders
as Momotaros / Kamen Rider Den-O Sword Form (voice)
Saiyuki Gaiden
TVas Konzen Dōji (voice)
2010
Kamen Rider Decade: Final Stage
as Momotaros / Kamen Rider Den-O (Sword Form)
Katanagatari
TVas Umigame Maniwa (voice)• 12 eps
Psychic Detective Yakumo
TVas Isshin Saitō
2009
10th Anniversary Project: Masked Rider LIVE & SHOW
as Kamen Rider Den-O Sword Form (voice)
Kamen Rider Decade: All Riders vs. Dai-Shocker
as Momotaros / Kamen Rider Den-O (voice)
Dogs: Bullets & Carnage
TVas Ernst Rammsteiner
2008
A Certain Magical Index
TVas Aleister Crowley (voice)• 9 eps
Sekirei
TVas Hiroto Minaka• 25 eps
Blade of the Immortal
TVas Souri (voice)
Kamen Rider Den-O: Imagin Anime
TVas Momotaros (voice)
2007
Momotaros' Summer Vacation
as Momotaros (voice)
Naruto Shippūden
TVas Iruka Umino (voice)• 320 eps
Kamen Rider Den-O
TVas Momotaros (voice)
Saiyuki Reload: Burial
TVas Genjō Sanzō (voice)
2006
Higurashi: When They Cry
TVas Kyousuke Irie (voice)• 10 eps
2005
MÄR: Märchen Awakens Romance
TVas Danna Toramizu• 102 eps
2004
Paranoia Agent
TVas Mitsuhiro Maniwa (voice)• 13 eps
Samurai Champloo
TVas Yamane (voice)• 26 eps
My-Hime
TVas Reito Kanzaki (voice)• 26 eps
Mobile Suit Gundam SEED
TVas Rau Le Creuset (voice) / Rey Za Burrel (voice)• 50 eps
Gin'yuu Mokushiroku Meine Liebe
TVas Ludwig Herzog von Mohn nahe Liechtenstein (voice)• 26 eps
2003
Requiem from the Darkness
TVas Momosuke Yamaoka (voice)• 13 eps
2002
Animation Store Manager
as Ryuu Raiba (voice)
Saint Seiya: The Hades Chapter
TVas Milo (voice)• 10 eps
Mirage of Blaze
TVas Takaya Ohgi (voice)• 13 eps
Naruto
TVas Iruka Umino (voice)• 220 eps
Angelique: Twin Collection
TVTheme Song Performance
2001
Vampire Hunter D: Bloodlust
as Grove Marcus (voice)
Saiyuki: Requiem
as Genjo Sanzo (voice)
2000
Baby Felix & Friends
as Felix The Cat
Saiyuki
TVas Genjo Sanzo (voice) / Konzen Douji (voice)• 50 eps
Descendants of Darkness
TVas Yutaka Watari (voice)
1999
Pet Shop of Horrors
TVas Count D (voice)
Reign: The Conqueror
TVas Alexander (voice)
1998
Gundam Wing: The Endless Waltz
as Duo Maxwell (voice)
Outlaw Star
TVas Fred (voice)• 26 eps
TRIGUN
TVas Legato Bluesummers (voice)• 7 eps
1997
Twilight of the Dark Master
as Shijo Tsunami (voice)
Hyper Police
TVas Sakunoshin Chikura
Dragoon
TVas Rain Keeves Fearudo (voice)
B'T X
TVas Quatro (voice)• 14 eps
1996
X: The Movie
as Shougo
Ultraman Super Fighter Legend
as Ultraseven / Ultraman Leo (voice)
The End of the Century Darling
as Todorokki Kouhei (voice)
The Legend of Zorro
TVas Don Diego de la Vega / Zorro
Special Duty Combat Unit Shinesman
TVas Shujin Seki (voice)
1995
Bio Hunter
as Komada
Mobile Suit Gundam Wing
TVas Duo Maxwell (voice)• 49 eps
1994
Genocyber
as Sakomizu (voice)
I'm Not an Angel!
as Bunta Kouno (voice)
Wild 7: Biker Knights
as Dairoku Hiba
Love Wedge 2
as Riki (voice)
The Irresponsible Captain Tylor OVA
TVas Dom (voice)• 10 eps
Wild 7
TVas Dairoku Hiba
Natsuki Crisis
TVas Kyōtarō Himuro
1993
Ocean Waves
as Yutaka Matsuno (voice)
Suikoden Demon Century
as Takateru Suga (voice)
Ninja Scroll
as Yurimaru (voice)
Black Jack
TVas Tokio Umetani (voice)• 1 eps
Aoki Densetsu Shoot!
TVas Akihiko Himuro• 58 eps
The Irresponsible Captain Tylor
TVas Ru Baraba Dom• 26 eps
Ninja Boy Rantaro
TVas Hansuke Doi
Please Save My Earth
TVas Mikuro Yakushimaru (voice)
1992
Love Wedge 1
as Riki (voice)
Ai no Kusabi
TVas Riki (voice)
D-1 Devastator
TVas 谷田辺了
1991
Handsome Girl
as Ichiya Kumagai (voice)
Trusty Ginjiro
as Hideki Mitsui (voice)
Moonlight Pierce
as Hiroshi Takama (voice)
Future GPX Cyber Formula
TVas Jotaro Kaga• 64 eps
Blazing Transfer Student
TVas Noboru Takizawa (voice)
Here Is Greenwood
TVas Shinobu Tezuka (voice)
Detonator Orgun
TVas Knock
Izumo
TVas Izumo (voice)
1990
Goddamn
as Hans Schultz
Heart-Coloured Killer Ticket
as Chuta Misora (voice)
Marina the Manga Artist Goes to Camelot
as Bijomaru Shizuka (voice)
Nadia: The Secret of Blue Water
TVas Fejto (voice)• 39 eps
Hakkenden: Legend of the Dog Warriors
TVas Shino Inuzuka (voice)• 13 eps
Goddamn
TVas Hans Schultz
1989
Hades Project: Zeorymer Extinction
as Masato Akitsu / Masaki Kihara (voice)
Angel Cop
as Tachihara (voice)
Demon Hunter Makaryūdo
as Shou Kurogane (voice)
Cinderella Express
as Yuji Shimano
Madö King Granzört
TVas Grunwald• 41 eps
Ranma ½
TVas Mousse (voice)• 13 eps
Shurato
TVas Shurato• 38 eps
Yawara!
TVas Matsuda / Eiji (voice)• 124 eps
Darkness of the Sea, Shadow of the Moon
TVas Katsuyuki Touma (voice)
1988
Hades Project: Zeorymer Separation
as Masaki Kihara (voice)
Zillion: Burning Night
as J.J. (voice)
Dragon Century
as Carmine (voice)
F
TVas Gunma Akagi (voice)
Spirit Warrior
TVas Kujaku (voice)
Armor Hunter Merowlink
TVas PFC Cepres
1987
TO-Y
as Shouji (voice)
The Samurai
as Takeshi Chimatsuri
Campus Special Investigator Hikaruon
as Hikaru Shihodo / Hikaruon (voice)
Zillion
TVas JJ• 31 eps
Evil Dragon War Chronicles
TVas 錦繍 (voice)
1986
Castle in the Sky
as Additional Voices (voice)
Call Me Tonight
as Hayata (voice)
1985
Magical Emi, the Magic Star
TVas Customer A (voice)
1971
Kamen Rider
TVas Momotaros (voice) / Kamen Rider Den-O (voice)

Social Media

IMDb

Personal Info

Known For
Acting
Gender
Male
Birthday
6/11/1962(63 years old)
Place of Birth
Sendai, Miyagi, Japan