Toshihiko Seki
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.
Personal Details
Also Known As
Movies (17)
Demon Slayer: Kimetsu no Yaiba Infinity Castle
as Muzan Kibutsuji (voice)
2025
Nintama Rantarō: Invincible Master of the Dokutake Ninja
as Hansuke Doi (voice)
2024
The Birth of Kitaro: The Mystery of GeGeGe
as Kitarou's Father (voice)
2023
Black Clover: Sword of the Wizard King
as Conrad Leto (voice)
2023
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
as Muzan Kibutsuji (voice)
2022
My Hero Academia: World Heroes' Mission
as Eddie Soul (voice)
2021
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
as Momotaros (voice) / Kamen Rider Den-O (voice)
2021
Kamen Rider Den-O: The Birth of Pretty Den-O!
as Momotaros (voice)
2020
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
as Muzan Kibutsuji (voice)
2019
Kamen Rider Heisei Generations Forever
as Momotaros / Kamen Rider Den-O Sword Form (voice)
2018
Mazinger Z: Infinity
as Tetsuya Tsurugi (voice)
2017
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
as Momotaros
2017
Kamen Rider × Super Sentai: Ultra Super Hero Wars
as Momotaros - Kamen Rider Den-O Sword Form (voice)
2017
Naruto OVA 13: The Day Naruto Became Hokage
as Iruka Umino (voice)
2016
Mobile Suit Gundam: The Origin II - Artesia's Sorrow
as Char Aznable (voice)
2015
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
as Kamen Rider Den-O Sword Form (voice)
2014
Hunter x Hunter: The Last Mission
as Wing (voice)
2013
TV Shows (33)
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)
2025
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)
2024
Onimusha
as Kojiro Sasaki (voice)
2023
PLUTO
as Pluto (voice)
2023
The Most Heretical Last Boss Queen: From Villainess to Savior
as Clark Darwin (voice)
2023
Rurouni Kenshin
as Narration (voice)
2023
HIGH CARD
as Norman Kingstat (voice)
2023
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
as Momotaros (voice)
2022
Higurashi: When They Cry - NEW
as Kyousuke Irie (voice)
2020
The Misfit of Demon King Academy
as Ahide Alobo Agatze (voice)
2020
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)
2019
Saint Seiya: Saintia Sho
as Scorpio Milo (voice)
2018
Golden Kamuy
as Kazuo Henmi (voice)
2018
SWORD GAI: The Animation
as Miura Takuma
2018
The Ryuo's Work is Never Done!
as Kiyotaki Kousuke (voice)
2018
THE REFLECTION
as Michael Holden (voice)
2017
The Laughing Salesman NEW
as Shisao Kihara(Story2)
2017
To Be Hero
as Chinese Tohoku Muffler (voice)
2016
Mob Psycho 100
as Morizo Ebihara (voice)
2016
Showa Genroku Rakugo Shinju
as Eisuke Higuchi (voice)
2016
Saint Seiya: Soul of Gold
as Scorpio Milo (voice)
2015
Cross Ange: Rondo of Angels and Dragons
as Embryo (voice)
2014
Space Dandy
as Public Prosecutor (voice)
2014
Gingitsune: Messenger Fox of the Gods
as Tatsuo Saeki (voice)
2013