Toshihiko Seki
Born June 11, 1962 (Age: 63)
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Sendai, 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.
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.
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Filmography
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
2026
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as Gavarion Trigger System Voice (voice)
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Age: 63
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025
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as Muzan Kibutsuji (voice)
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Age: 63
My Hero Academia: World Heroes' Mission
2021
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as Eddie Soul (voice)
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Age: 59
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019
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as Muzan Kibutsuji (voice)
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Age: 56
Mazinger Z: Infinity
2017
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as Tetsuya Tsurugi (voice)
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Age: 55
Naruto OVA 12: The Day Naruto Became Hokage
2016
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as Iruka Umino (voice)
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Age: 54
Hunter x Hunter: The Last Mission
2013
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as Wing (voice)
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Age: 51
Road to Ninja: Naruto the Movie
2012
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as Iruka Umino (voice)
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Age: 50
Detective Conan: Quarter of Silence
2011
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as Shogo Hikawa (voice)
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Age: 48
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
2011
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as Momotaros (voice)
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Age: 48
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
2010
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as Momotaros (voice)
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Age: 48
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
2010
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as Momotaros (voice)
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Age: 47
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
2010
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as Momotaros (voice)
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Age: 47
Kamen Rider Decade: Final Stage
2010
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as Momotaros / Kamen Rider Den-O (Sword Form)
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Age: 47
10th Anniversary Project: Masked Rider LIVE & SHOW
2009
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as Kamen Rider Den-O Sword Form (voice)
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Age: 47
Kamen Rider Decade: All Riders vs. Dai-Shocker
2009
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as Momotaros / Kamen Rider Den-O (voice)
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Age: 47
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
2009
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as Momotaros (voice)
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Age: 46
Kamen Rider Kiva & Den-O: DenLiner, Into Space!
2009
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as Momotaros (voice)
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Age: 46
Farewell Kamen Rider Den-O: Final Countdown
2008
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as Momotaros (voice)
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Age: 46
Kamen Rider Kiva: King of the Castle in the Demon World
2008
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as Penetentiary Officer Sanjo
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Age: 46
Kamen Rider Den-O & Kiva: Climax Deka
2008
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as Momotaros (voice)
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Age: 45
Kamen Rider Den-O: Final Stage
2007
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as Momotaros
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Age: 45
Kamen Rider Den-O: Singing, Dancing, Great Training!!
2007
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as Momotaros (voice)
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Age: 45
Kamen Rider Den-O The Movie: I'm Born!
2007
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as Momotaros (voice)
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Age: 45
Momotaros' Summer Vacation
2007
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as Momotaros (voice)
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Age: 45
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
2007
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as Momotaros (voice)
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Age: 45
Saiyuki Interactive
2002
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as
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Age: 40
Animation Store Manager
2002
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as Ryuu Raiba (voice)
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Age: 40
Vampire Hunter D: Bloodlust
2001
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as Grove Marcus (voice)
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Age: 38
Reign: The Conqueror Movie
2000
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as Alexander
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Age: 38
Baby Felix & Friends
2000
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as Felix The Cat
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Age: 37
Gundam Wing: The Endless Waltz
1998
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as Duo Maxwell (voice)
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Age: 36
Twilight of the Dark Master
1997
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as Shijo Tsunami (voice)
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Age: 35
Ultraman Super Fighter Legend
1996
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as Ultraseven / Ultraman Leo (voice)
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Age: 34
X: The Movie
1996
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as Shougo
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Age: 34
Yawara! Atlanta Special
1996
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as
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Age: 34
Violinist of Hamelin: The Movie
1996
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as Raiel (voice)
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Age: 33
The End of the Century Darling
1996
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as Todorokki Kouhei (voice)
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Age: 33
Love Wedge 2
1994
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as Riki (voice)
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Age: 31
Ocean Waves
1993
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as Yutaka Matsuno (voice)
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Age: 31
Suikoden Demon Century
1993
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as Takateru Suga (voice)
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Age: 31
Kiss Me on the Apple of My Eye
1993
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as Naoto (voice)
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Age: 31
Ninja Scroll
1993
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as Yurimaru (voice)
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Age: 30
Download: Devil's Circuit
1992
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as Sid (voice)
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Age: 30
Oruorane the Cat Player
1992
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as The Cellist
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Age: 30
Love Wedge 1
1992
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as Riki (voice)
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Age: 30
Ranma 1/2 the Movie 2: Nihao My Concubine
1992
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as Mousse (voice)
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Age: 30
Yawara! Go Get 'Em, Wimpy Kids!!
1992
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as (voice)
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Age: 30
Calico Cat Holmes and the Lord of the Haunted Castle
1992
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as Yoshitaro Katayama (voice)
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Age: 30
The Weathering Continent
1992
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as Tieh (voice)
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Age: 30
Moonlight Pierce
1991
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as Hiroshi Takama (voice)
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Age: 29
Inferious Interplanetary War Chronicle - Condition Green
1991
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as Soo Laform (voice)
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Age: 29
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991
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as Mousse (voice)
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Age: 29
Handsome Girl
1991
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as Ichiya Kumagai (voice)
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Age: 29
Yuukan Club
1991
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as
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Age: 29
Nadia: The Secret of Blue Water - The Motion Picture
1991
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as Falt (voice)
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Age: 29
Nadia: The Secret of Blue Water - Nautilus Story II
1991
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as Fate (voice)
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Age: 29
Trusty Ginjiro
1991
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as Hideki Mitsui (voice)
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Age: 28
Hisashi Eguchi's Kotobuki Goro Show
1991
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as Piston Akagi (voice)
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Age: 28
TOKYO CITY Melhen 2
1990
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as
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Age: 28
Marina the Manga Artist Goes to Camelot
1990
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as Bijomaru Shizuka (voice)
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Age: 28
Midoriyama High School, Koshien Edition (Movie)
1990
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as
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Age: 28
Milky Passion: Dougenzaka - The Castle of Love
1990
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as Ootsuki (voice)
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Age: 28
Goddamn
1990
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as Hans Schultz
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Age: 27
Heart-Coloured Killer Ticket
1990
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as Chuta Misora (voice)
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Age: 27
Ryokunohara Labyrinth - Sparkling Phantom
1990
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as Hiroki Imashi
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Age: 27
Demon Hunter Makaryūdo
1989
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as Shou Kurogane (voice)
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Age: 27
Angel Cop
1989
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as Tachihara (voice)
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Age: 27
Cinderella Express
1989
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as Yuji Shimano
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Age: 27
Scarlet Demon
1989
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as
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Age: 26
Kaze wo Nuke!
1988
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as
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Age: 26
Dragon Century
1988
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as Carmine (voice)
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Age: 26
Sunlight All Around! Ka - su - mi: You Were in My Dreams
1988
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as Reporter B (voice)
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Age: 26
Zillion: Burning Night
1988
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as J.J. (voice)
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Age: 26
Balthus: Tia's Radiance
1988
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as Eud (voice)
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Age: 25
The Samurai
1987
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as Takeshi Chimatsuri
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Age: 25
TO-Y
1987
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as Shouji (voice)
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Age: 25
Maryuu Senki
1987
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as
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Age: 24
Campus Special Investigator Hikaruon
1987
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as Hikaru Shihodo / Hikaruon (voice)
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Age: 24
Castle in the Sky
1986
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as Additional Voices (voice)
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Age: 24