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.
112 movies · 128 shows
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
2026·0.0
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
2026·0.0
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025·7.8
Nintama Rantarō: Invincible Master of the Dokutake Ninja
2024·7.6
The Birth of Kitaro: The Mystery of GeGeGe
2023·7.4
Black Clover: Sword of the Wizard King
2023·8.1
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
2022·7.7
My Hero Academia: World Heroes' Mission
2021·7.6
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
2021·6.0
Kamen Rider Den-O: The Birth of Pretty Den-O!
2020·8.0
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019·7.9
Kamen Rider Heisei Generations Forever
2018·6.1
Mazinger Z: Infinity
2017·7.0
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2017·0.0
Kamen Rider × Super Sentai: Ultra Super Hero Wars
2017·5.7
Naruto OVA 12: The Day Naruto Became Hokage
2016·7.5
Mobile Suit Gundam: The Origin II - Artesia's Sorrow
2015·7.4
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014·6.4
Hunter x Hunter: The Last Mission
2013·7.0
Higurashi: When They Cry - Outbreak
2013·6.6
Road to Ninja: Naruto the Movie
2012·7.4
Kamen Rider × Super Sentai: Super Hero Wars
2012·6.6
Detective Conan: Quarter of Silence
2011·7.1
OOO, Den-O, All Riders: Let's Go Kamen Riders
2011·6.3
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
2011·5.6
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
2011·0.0
Kamen Rider × Kamen Rider × Kamen Rider The Movie Cho-Den-O Trilogy Movie Released Memorial Special Stage: Imagin Super Climax Tour 2010
2010·0.0
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
2010·5.2
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
2010·5.6
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
2010·5.3
Kamen Rider Decade: Final Stage
2010·0.0
Kamen Rider × Kamen Rider W & Decade: Movie War 2010
2009·6.2
10th Anniversary Project: Masked Rider LIVE & SHOW
2009·0.0
Kamen Rider Decade: All Riders vs. Dai-Shocker
2009·6.4
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
2009·6.1
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2009·0.0
Kamen Rider Kiva & Den-O: DenLiner, Into Space!
2009·0.0
Imagin Anime: Momotaros Forever!/Imajin Terminal Station
2008·0.0
Farewell Kamen Rider Den-O: Final Countdown
2008·7.3
Kamen Rider Kiva: King of the Castle in the Demon World
2008·6.9
Momotaros' King of the Crimson Castle
2008·0.0
Kamen Rider Den-O: Final Trilogy Special Edition
2008·0.0
Kamen Rider Den-O & Kiva: Climax Deka
2008·8.0
Kamen Rider Den-O: Final Stage
2007·0.0
Kamen Rider Den-O: Singing, Dancing, Great Training!!
2007·0.0
Kamen Rider Den-O The Movie: I'm Born!
2007·7.2
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
2007·0.0
Momotaros' Summer Vacation
2007·0.0
Paranoia Agent: Part 1
2004·5.0
Saiyuki Interactive
2002·4.0
Animation Store Manager
2002·4.2
Saiyuki: Requiem
2001·5.6
Reign: The Conqueror Movie
2000·7.4
Baby Felix & Friends
2000·4.0
Gundam Wing: The Endless Waltz
1998·7.4
Twilight of the Dark Master
1997·5.4
Chimera: Angel of Death
1997·4.5
Ultraman Super Fighter Legend
1996·0.0
X
1996·6.1
Yawara! Atlanta Special
1996·6.5
Violinist of Hamelin: The Movie
1996·0.0
The End of the Century Darling
1996·4.0
Bio Hunter
1995·5.9
Wild 7: Biker Knights
1994·2.0
I'm Not an Angel!
1994·6.0
Love Wedge 2
1994·6.8
Dorami-chan: A Blue Straw Hat
1994·6.2
Genocyber
1994·5.6
Ocean Waves
1993·6.4
Suikoden Demon Century
1993·5.3
Kiss Me on the Apple of My Eye
1993·0.0
Ninja Scroll
1993·7.8
Download: Devil's Circuit
1992·6.2
Oruorane the Cat Player
1992·4.0
Love Wedge 1
1992·6.8
Ranma 1/2 the Movie 2: Nihao My Concubine
1992·8.0
Yawara! Go Get 'Em, Wimpy Kids!!
1992·5.3
Calico Cat Holmes and the Lord of the Haunted Castle
1992·7.0
The Weathering Continent
1992·5.5
Moonlight Pierce
1991·0.0
Inferious Interplanetary War Chronicle - Condition Green
1991·0.0
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991·7.3
Handsome Girl
1991·3.0
Yuukan Club
1991·7.0
Nadia: The Secret of Blue Water - The Motion Picture
1991·5.1
Nadia: The Secret of Blue Water - Nautilus Story II
1991·0.0
Trusty Ginjiro
1991·4.0
Hisashi Eguchi's Kotobuki Goro Show
1991·4.7
TOKYO CITY Melhen 2
1990·0.0
Marina the Manga Artist Goes to Camelot
1990·1.0
Midoriyama High School, Koshien Edition (Movie)
1990·0.0
Milky Passion: Dougenzaka - The Castle of Love
1990·2.0
Goddamn
1990·0.0
Heart-Coloured Killer Ticket
1990·0.0
Ryokunohara Labyrinth - Sparkling Phantom
1990·3.5
Demon Hunter Makaryūdo
1989·5.8
Angel Cop
1989·6.2
Cinderella Express
1989·2.0
Scarlet Demon
1989·4.0
Hades Project: Zeorymer Extinction
1989·4.7
Kaze wo Nuke!
1988·0.0
Hades Project: Zeorymer Separation
1988·4.1
Dragon Century
1988·6.0
Sunlight All Around! Ka - su - mi: You Were in My Dreams
1988·1.0
Zillion: Burning Night
1988·7.0
Balthus: Tia's Radiance
1988·5.0
The Samurai
1987·3.8
TO-Y
1987·7.8
Maryuu Senki
1987·3.5
Campus Special Investigator Hikaruon
1987·7.3
Castle in the Sky
1986·8.0
Call Me Tonight
1986·4.3