Toshihiko Seki
Acting
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 · Sendai, Miyagi, Japan
Filmography (147)
TV
SANDA
2025
Actor: Hifumi Ōshibu (voi…
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025
Actor: Muzan Kibutsuji (v…
TV
U Takes Terra
2025
Actor: Chongyue (Voice)
TV
Mashin Creator Wataru
2025
Actor: Mr. Liar (voice)
TV
I Have a Crush at Work
2025
Actor: Pastor (voice)
TV
Good Bye, Dragon Life
2024
Actor: Dio (voice)
TV
Ranma1/2
2024
Actor: Mousse (voice)
TV
I Parry Everything
2024
Actor: Carew (voice)
TV
Kaiju No. 8
2024
Actor: Kaiju No. 11 (voic…
The Birth of Kitaro: The Mystery of GeGeGe
2023
Actor: Kitarou's Father (…
TV
Onimusha
2023
Actor: Kojiro Sasaki (voi…
TV
PLUTO
2023
Actor: Sahad (voice)Actor: Pluto (voice)
TV
The Most Heretical Last Boss Queen: From Villainess to Savior
2023
Actor: Clark Darwin (voic…
TV
Rurouni Kenshin
2023
Actor: Narration (voice)
Black Clover: Sword of the Wizard King
2023
Actor: Conrad Leto (voice…
TV
HIGH CARD
2023
Actor: Norman Kingstat (v…
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
2022
Actor: Muzan Kibutsuji (v…
My Hero Academia: World Heroes' Mission
2021
Actor: Eddie Soul (voice)
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
2021
Actor: Momotaros (voice) …
TV
Higurashi: When They Cry - NEW
2020
Actor: Kyousuke Irie (voi…
TV
The Misfit of Demon King Academy
2020
Actor: Ahide Alobo Agatze…
TV
SAINT SEIYA: Knights of the Zodiac
2019
Actor: Scorpio Milo (voic…
TV
Sarazanmai
2019
Actor: Yuri Kamome
TV
Demon Slayer: Kimetsu no Yaiba
2019
Actor: Muzan Kibutsuji (v…
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019
Actor: Muzan Kibutsuji (v…
TV
Star☆Twinkle PreCure
2019
Actor: Toto Hagoromo (voi…
Kamen Rider Heisei Generations Forever
2018
Actor: Momotaros / Kamen …
TV
Saint Seiya: Saintia Sho
2018
Actor: Scorpio Milo (voic…
TV
Golden Kamuy
2018
Actor: Kazuo Henmi (voice…
TV
SWORD GAI: The Animation
2018
Actor: Miura Takuma
TV
The Ryuo's Work is Never Done!
2018
Actor: Kiyotaki Kousuke (…
Mazinger Z: Infinity
2017
Actor: Tetsuya Tsurugi (v…
TV
THE REFLECTION
2017
Actor: Michael Holden (vo…
TV
The Laughing Salesman NEW
2017
Actor: Shisao Kihara(Stor…
Kamen Rider × Super Sentai: Ultra Super Hero Wars
2017
Actor: Momotaros - Kamen …
TV
To Be Hero
2016
Actor: Chinese Tohoku Muf…
TV
Mob Psycho 100
2016
Actor: Morizo Ebihara (vo…Actor: Musashi Goda (voic…
Naruto OVA 12: The Day Naruto Became Hokage
2016
Actor: Iruka Umino (voice…
TV
Showa Genroku Rakugo Shinju
2016
Actor: Eisuke Higuchi (vo…
Mobile Suit Gundam: The Origin II - Artesia's Sorrow
2015
Actor: Char Aznable (voic…
TV
Saint Seiya: Soul of Gold
2015
Actor: Scorpio Milo (voic…
TV
Cross Ange: Rondo of Angels and Dragons
2014
Actor: Embryo (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014
Actor: Kamen Rider Den-O …
TV
Space Dandy
2014
Actor: Public Prosecutor …
Hunter x Hunter: The Last Mission
2013
Actor: Wing (voice)
TV
Gingitsune: Messenger Fox of the Gods
2013
Actor: Tatsuo Saeki (voic…
Higurashi: When They Cry - Outbreak
2013
Actor: Kyousuke Irie (voi…
TV
Triple Combination: Transformers Go!
2013
Actor: Gekisōmaru (voice)
Road to Ninja: Naruto the Movie
2012
Actor: Iruka Umino (voice…
Kamen Rider × Super Sentai: Super Hero Wars
2012
Actor: Momotaros - Kamen …
TV
Glitter Force
2012
Actor: Hiroshi Hoshizora
TV
Guilty Crown
2011
Actor: Kurosu Ouma (voice…
TV
Hunter x Hunter
2011
Actor: Wing (voice)
Detective Conan: Quarter of Silence
2011
Actor: Shogo Hikawa (voic…
OOO, Den-O, All Riders: Let's Go Kamen Riders
2011
Actor: Momotaros / Kamen …
TV
Saiyuki Gaiden
2011
Actor: Konzen Dōji (voice…
TV
Psychic Detective Yakumo
2010
Actor: Isshin Saitō
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
2010
Actor: Momotaros (voice)
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
2010
Actor: Momotaros (voice)
TV
Katanagatari
2010
Actor: Umigame Maniwa (vo…
Kamen Rider × Kamen Rider W & Decade: Movie War 2010
2009
Actor: Kamen Rider Den-O …
Kamen Rider Decade: All Riders vs. Dai-Shocker
2009
Actor: Momotaros / Kamen …
TV
Dogs: Bullets & Carnage
2009
Actor: Ernst Rammsteiner
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
2009
Actor: Momotaros (voice)Theme Song Performance
TV
A Certain Magical Index
2008
Actor: Aleister Crowley (…
Farewell Kamen Rider Den-O: Final Countdown
2008
Actor: Momotaros (voice)
Kamen Rider Kiva: King of the Castle in the Demon World
2008
Actor: Penetentiary Offic…
TV
Blade of the Immortal
2008
Actor: Souri (voice)
TV
Sekirei
2008
Actor: Hiroto Minaka
Kamen Rider Den-O & Kiva: Climax Deka
2008
Actor: Momotaros (voice)Theme Song Performance
Kamen Rider Den-O The Movie: I'm Born!
2007
Actor: Momotaros (voice)
TV
Saiyuki Reload: Burial
2007
Actor: Genjō Sanzō (voice…
TV
Naruto Shippūden
2007
Actor: Iruka Umino (voice…
TV
Kamen Rider Den-O
2007
Actor: Momotaros (voice)
TV
Shonen Onmyouji
2006
Actor
TV
Higurashi: When They Cry
2006
Actor: Kyousuke Irie (voi…
TV
MÄR: Märchen Awakens Romance
2005
Actor: Danna Toramizu
TV
Gin'yuu Mokushiroku Meine Liebe
2004
Actor: Ludwig Herzog von …
TV
Bleach
2004
Actor: Aaroniero Arruruer…
TV
My-Hime
2004
Actor: Reito Kanzaki (voi…
TV
Samurai Champloo
2004
Actor: Yamane (voice)
TV
Paranoia Agent
2004
Actor: Mitsuhiro Maniwa (…
TV
Requiem from the Darkness
2003
Actor: Momosuke Yamaoka (…
TV
Saint Seiya: The Hades Chapter
2002
Actor: Milo (voice)
TV
Mobile Suit Gundam SEED
2002
Actor: Rau Le Creuset (vo…Actor: Rey Za Burrel (voi…
TV
Naruto
2002
Actor: Iruka Umino (voice…
Animation Store Manager
2002
Actor: Ryuu Raiba (voice)
TV
Angelique: Twin Collection
2002
Actor: Luva (voice)Theme Song Performance
TV
Mirage of Blaze
2002
Actor: Takaya Ohgi (voice…
Saiyuki: Requiem
2001
Actor: Genjo Sanzo (voice…
Vampire Hunter D: Bloodlust
2001
Actor: Grove Marcus (voic…
Reign: The Conqueror Movie
2000
Actor: Alexander
TV
Descendants of Darkness
2000
Actor: Yutaka Watari (voi…
TV
Saiyuki
2000
Actor: Genjo Sanzo (voice…Actor: Konzen Douji (voic…
TV
Reign: The Conqueror
1999
Actor: Alexander (voice)
TV
Pet Shop of Horrors
1999
Actor: Count D (voice)
TV
Bビーダマン爆外伝V
1999
Actor: Kurobon
Gundam Wing: The Endless Waltz
1998
Actor: Duo Maxwell (voice…
TV
Nightwalker: The Midnight Detective
1998
Actor: Bait
TV
TRIGUN
1998
Actor: Legato Bluesummers…
TV
Bomberman B-Daman Bakugaiden
1998
Actor
TV
Outlaw Star
1998
Actor: Fred (voice)
Twilight of the Dark Master
1997
Actor: Shijo Tsunami (voi…
TV
Hakugei: Legend of the Moby Dick
1997
Actor
TV
Hyper Police
1997
Actor: Sakunoshin Chikura
X: The Movie
1996
Actor: Shougo
Yawara! Atlanta Special
1996
Actor
TV
B'T X
1996
Actor: Quatro (voice)
TV
The Legend of Zorro
1996
Actor: Don Diego de la Ve…
Bio Hunter
1995
Actor: Komada
TV
Mobile Suit Gundam Wing
1995
Actor: Duo Maxwell (voice…
TV
The Irresponsible Captain Tylor OVA
1994
Actor: Dom (voice)
Genocyber
1994
Actor: Sakomizu (voice)
TV
Please Save My Earth
1993
Actor: Mikuro Yakushimaru…
TV
Black Jack
1993
Actor: Tokio Umetani (voi…
TV
Aoki Densetsu Shoot!
1993
Actor: Akihiko Himuro (vo…
Ocean Waves
1993
Actor: Yutaka Matsuno (vo…
Ninja Scroll
1993
Actor: Yurimaru (voice)
TV
Ninja Boy Rantaro
1993
Actor: Hansuke Doi
TV
The Irresponsible Captain Tylor
1993
Actor: Ru Baraba Dom
Download: Devil's Circuit
1992
Actor: Sid (voice)
TV
Ai no Kusabi
1992
Actor: Riki (voice)
TV
Bastard!!
1992
Actor
Ranma 1/2 the Movie 2: Nihao My Concubine
1992
Actor: Mousse (voice)
The Weathering Continent
1992
Actor: Tieh (voice)
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991
Actor: Mousse (voice)
TV
Detonator Orgun
1991
Actor: Knock
Nadia: The Secret of Blue Water - The Motion Picture
1991
Actor: Falt (voice)
TV
Blazing Transfer Student
1991
Actor: Noboru Takizawa (v…
TV
Future GPX Cyber Formula
1991
Actor: Jotaro Kaga
TV
Hakkenden: Legend of the Dog Warriors
1990
Actor: Shino Inuzuka (vo…
TV
Nadia: The Secret of Blue Water
1990
Actor: Fejto (voice)
TV
Yawara!
1989
Actor: Matsuda / Eiji (vo…
TV
Dash! Yonkuro
1989
Actor
Angel Cop
1989
Actor: Tachihara (voice)
TV
Ranma ½
1989
Actor: Mousse (voice)
TV
Madö King Granzört
1989
Actor: Grunwald
TV
Shurato
1989
Actor: Shurato
Hades Project: Zeorymer Separation
1988
Actor: Masato Akitsu (voi…Actor: Masaki Kihara (voi…
TV
Hades Project Zeorymer
1988
Actor: (voice)
TV
Armor Hunter Merowlink
1988
Actor: PFC Cepres
TV
Dragon Century
1988
Actor
TV
Zillion
1987
Actor: JJ
Castle in the Sky
1986
Actor: Additional Voices …
Call Me Tonight
1986
Actor: Hayata (voice)
TV
Magical Emi, the Magic Star
1985
Actor: Customer A (voice)
TV
Kamen Rider
1971
Actor: Kamen Rider Den-O …Actor: Momotaros (voice)