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.
Notable Works
Prominent titles featuring Toshihiko Seki
Ocean Waves
1993
Filmography
Acting (114)
2026
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hias Cosmo Gavarion System Voice / Gavarion Trigger System Voice
2026
Super Space Sheriff Gavan Infinity: Jo-Chaku Courseas Gavarion Trigger System Voice (voice)
2025
Demon Slayer: Kimetsu no Yaiba Infinity Castleas Muzan Kibutsuji (voice)
8.8
2024
Nintama Rantarō: Invincible Master of the Dokutake Ninjaas Hansuke Doi (voice)
7.6
2023
The Birth of Kitaro: The Mystery of GeGeGeas Kitarou's Father (voice)
7.4
2023
Black Clover: Sword of the Wizard Kingas Conrad Leto (voice)
8.1
2022
Demon Slayer: Kimetsu no Yaiba - Asakusa Arcas Muzan Kibutsuji (voice)
7.6
2021
My Hero Academia: World Heroes' Missionas Eddie Soul (voice)
7.6
2021
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chroniclesas Momotaros (voice) / Kamen Rider Den-O (voice)
6.1
2020
Kamen Rider Den-O: The Birth of Pretty Den-O!as Momotaros (voice)
8.0
2019
Demon Slayer: Kimetsu no Yaiba - Sibling's Bondas Muzan Kibutsuji (voice)
7.9
2018
Kamen Rider Heisei Generations Foreveras Momotaros / Kamen Rider Den-O Sword Form (voice)
6.1
2017
Mazinger Z: Infinityas Tetsuya Tsurugi (voice)
7.0
2017
Kamen Rider × Super Sentai: Ultra Super Hero Warsas Momotaros - Kamen Rider Den-O Sword Form (voice)
5.6
2016
Naruto OVA 12: The Day Naruto Became Hokageas Iruka Umino (voice)
7.4
2015
Mobile Suit Gundam: The Origin II - Artesia's Sorrowas Char Aznable (voice)
7.4
2014
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentaias Kamen Rider Den-O Sword Form (voice)
6.4
2013
Hunter x Hunter: The Last Missionas Wing (voice)
6.9
2013
Higurashi: When They Cry - Outbreakas Kyousuke Irie (voice)
6.6
2012
Road to Ninja: Naruto the Movieas Iruka Umino (voice)
7.4
2012
Kamen Rider × Super Sentai: Super Hero Warsas Momotaros - Kamen Rider Den-O Sword Form (voice)
6.6
2011
Detective Conan: Quarter of Silenceas Shogo Hikawa (voice)
7.1
2011
OOO, Den-O, All Riders: Let's Go Kamen Ridersas Momotaros / Kamen Rider Den-O Sword Form (voice)
6.3
2011
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!as Hansuke Doi (voice)
5.6
2011
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~as Momotaros (voice)
2010
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Piratesas Momotaros (voice)
5.3
2010
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtralas Momotaros (voice)
5.8
2010
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkleas Momotaros (voice)
5.4
2010
Kamen Rider Decade: Final Stageas Momotaros / Kamen Rider Den-O (Sword Form)
2009
Kamen Rider × Kamen Rider W & Decade: Movie War 2010as Kamen Rider Den-O (voice)
6.2
2009
10th Anniversary Project: Masked Rider LIVE & SHOWas Kamen Rider Den-O Sword Form (voice)
2009
Kamen Rider Decade: All Riders vs. Dai-Shockeras Momotaros / Kamen Rider Den-O (voice)
6.5
2009
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warshipas Momotaros (voice)
5.9
2009
2009
Kamen Rider Kiva & Den-O: DenLiner, Into Space!as Momotaros (voice)
2008
Imagin Anime: Momotaros Forever!/Imajin Terminal Stationas Momotaros (voice)
2008
Farewell Kamen Rider Den-O: Final Countdownas Momotaros (voice)
7.3
2008
Kamen Rider Kiva: King of the Castle in the Demon Worldas Penetentiary Officer Sanjo
6.8
2008
Momotaros' King of the Crimson Castleas Momotaros (voice)
2008
Kamen Rider Den-O: Final Trilogy Special Editionas Momotaros (voice)
2008
Kamen Rider Den-O & Kiva: Climax Dekaas Momotaros (voice)
7.8
2007
Kamen Rider Den-O: Final Stageas Momotaros
2007
Kamen Rider Den-O: Singing, Dancing, Great Training!!as Momotaros (voice)
2007
Kamen Rider Den-O The Movie: I'm Born!as Momotaros (voice)
7.2
2007
Momotaros' Summer Vacationas Momotaros (voice)
2004
Paranoia Agent: Part 1as まにわ みつひろ
5.0
4.0
2002
Animation Store Manageras Ryuu Raiba (voice)
4.7
2001
Saiyuki: Requiemas Genjo Sanzo (voice)
5.6
2000
Reign: The Conqueror Movieas Alexander
7.5
2000
Baby Felix & Friendsas Felix The Cat
4.0
1998
Gundam Wing: The Endless Waltzas Duo Maxwell (voice)
7.3
1997
Twilight of the Dark Masteras Shijo Tsunami (voice)
5.3
1997
Chimera: Angel of Deathas Ron
4.5
1996
Ultraman Super Fighter Legendas Ultraseven / Ultraman Leo (voice)
1996
Xas Shougo
6.2
6.5
1996
Violinist of Hamelin: The Movieas Raiel (voice)
1996
The End of the Century Darlingas Todorokki Kouhei (voice)
4.0
1995
Bio Hunteras Komada
5.8
1994
Wild 7: Biker Knightsas Dairoku Hiba
2.0
1994
The Irresponsible Captain Tylor: Tylor's Waras Ru Baraba Dom (voice)
10.0
1994
I'm Not an Angel!as Bunta Kouno (voice)
6.0
1994
Love Wedge 2as Riki (voice)
6.8
1994
Dorami-chan: A Blue Straw Hatas Crow (voice)
6.2
1994
Genocyberas Sakomizu (voice)
5.6
1993
Ocean Wavesas Yutaka Matsuno (voice)
6.4
1993
Suikoden Demon Centuryas Takateru Suga (voice)
5.3
1993
Kiss Me on the Apple of My Eyeas Naoto (voice)
1993
Ninja Scrollas Yurimaru (voice)
7.8
1992
Download: Devil's Circuitas Sid (voice)
6.5
1992
Oruorane the Cat Playeras The Cellist
4.0
1992
Love Wedge 1as Riki (voice)
6.8
1992
Ranma 1/2 the Movie 2: Nihao My Concubineas Mousse (voice)
8.0
1992
Yawara! Go Get 'Em, Wimpy Kids!!as (voice)
5.3
1992
Calico Cat Holmes and the Lord of the Haunted Castleas Yoshitaro Katayama (voice)
7.0
1992
The Weathering Continentas Tieh (voice)
5.5
1991
Moonlight Pierceas Hiroshi Takama (voice)
1991
Inferious Interplanetary War Chronicle - Condition Greenas Soo Laform (voice)
1991
Ranma 1/2 the Movie: Big Trouble in Nekonron, Chinaas Mousse (voice)
7.3
1991
Handsome Girlas Ichiya Kumagai (voice)
3.0
1991
7.0
1991
Nadia: The Secret of Blue Water - The Motion Pictureas Falt (voice)
5.1
1991
Nadia: The Secret of Blue Water - Nautilus Story IIas Fate (voice)
1991
Trusty Ginjiroas Hideki Mitsui (voice)
4.0
1991
Hisashi Eguchi's Kotobuki Goro Showas Piston Akagi (voice)
4.7
1990
Marina the Manga Artist Goes to Camelotas Bijomaru Shizuka (voice)
1.0
1990
Milky Passion: Dougenzaka - The Castle of Loveas Ootsuki (voice)
2.0
1990
Goddamnas Hans Schultz
1990
Heart-Coloured Killer Ticketas Chuta Misora (voice)
1990
Ryokunohara Labyrinth - Sparkling Phantomas Hiroki Imashi
3.5
1989
Demon Hunter Makaryūdoas Shou Kurogane (voice)
5.8
1989
Angel Copas Tachihara (voice)
6.2
1989
Cinderella Expressas Yuji Shimano
2.0
1989
4.0
1989
Hades Project: Zeorymer Extinctionas Masato Akitsu / Masaki Kihara (voice)
4.7
1988
1988
Hades Project: Zeorymer Separationas Masato Akitsu (voice)
4.1
1988
Hades Project: Zeorymer Separationas Masaki Kihara (voice)
4.1
1988
Dragon Centuryas Carmine (voice)
6.0
1988
Sunlight All Around! Ka - su - mi: You Were in My Dreamsas Reporter B (voice)
3.0
1988
Zillion: Burning Nightas J.J. (voice)
7.0
1988
Balthus: Tia's Radianceas Eud (voice)
5.0
1987
The Samuraias Takeshi Chimatsuri
3.8
1987
TO-Yas Shouji (voice)
7.8
1987
3.5
1987
Campus Special Investigator Hikaruonas Hikaru Shihodo / Hikaruon (voice)
7.0
1986
Castle in the Skyas Additional Voices (voice)
8.0
1986
Call Me Tonightas Hayata (voice)
4.6
Production & Directing (2)
2009
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima WarshipTheme Song Performance
5.9
2008
Kamen Rider Den-O & Kiva: Climax DekaTheme Song Performance
7.8