Toshihiko Seki
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.
Photos
Movies (114)
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
2026 · Cosmo Gavarion System Voice / Gavarion Trigger System Voice
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
2026 · Gavarion Trigger System Voice (voice)
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025 · Muzan Kibutsuji (voice)
Nintama Rantarō: Invincible Master of the Dokutake Ninja
2024 · Hansuke Doi (voice)
The Birth of Kitaro: The Mystery of GeGeGe
2023 · Kitarou's Father (voice)
Black Clover: Sword of the Wizard King
2023 · Conrad Leto (voice)
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
2022 · Muzan Kibutsuji (voice)
My Hero Academia: World Heroes' Mission
2021 · Eddie Soul (voice)
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
2021 · Momotaros (voice) / Kamen Rider Den-O (voice)
Kamen Rider Den-O: The Birth of Pretty Den-O!
2020 · Momotaros (voice)
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019 · Muzan Kibutsuji (voice)
Kamen Rider Heisei Generations Forever
2018 · Momotaros / Kamen Rider Den-O Sword Form (voice)
Mazinger Z: Infinity
2017 · Tetsuya Tsurugi (voice)
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2017 · Momotaros
Kamen Rider × Super Sentai: Ultra Super Hero Wars
2017 · Momotaros - Kamen Rider Den-O Sword Form (voice)
Naruto OVA 12: The Day Naruto Became Hokage
2016 · Iruka Umino (voice)
Mobile Suit Gundam: The Origin II – Artesia's Sorrow
2015 · Char Aznable (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014 · Kamen Rider Den-O Sword Form (voice)
Hunter x Hunter: The Last Mission
2013 · Wing (voice)
Higurashi: When They Cry - Outbreak
2013 · Kyousuke Irie (voice)
Road to Ninja: Naruto the Movie
2012 · Iruka Umino (voice)
Kamen Rider × Super Sentai: Super Hero Wars
2012 · Momotaros - Kamen Rider Den-O Sword Form (voice)
Detective Conan: Quarter of Silence
2011 · Shogo Hikawa (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders
2011 · Momotaros / Kamen Rider Den-O Sword Form (voice)
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
2011 · Hansuke Doi (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
2011 · Momotaros (voice)
Kamen Rider × Kamen Rider × Kamen Rider The Movie Cho-Den-O Trilogy Movie Released Memorial Special Stage: Imagin Super Climax Tour 2010
2010
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
2010 · Momotaros (voice)
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
2010 · Momotaros (voice)
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
2010 · Momotaros (voice)
Kamen Rider Decade: Final Stage
2010 · Momotaros / Kamen Rider Den-O (Sword Form)
Kamen Rider × Kamen Rider W & Decade: Movie War 2010
2009 · Kamen Rider Den-O (voice)
10th Anniversary Project: Masked Rider LIVE & SHOW
2009 · Kamen Rider Den-O Sword Form (voice)
Kamen Rider Decade: All Riders vs. Dai-Shocker
2009 · Momotaros / Kamen Rider Den-O (voice)
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
2009 · Momotaros (voice), Theme Song Performance
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2009 · Momotaros (voice)
Kamen Rider Kiva & Den-O: DenLiner, Into Space!
2009 · Momotaros (voice)
Imagin Anime: Momotaros Forever!/Imajin Terminal Station
2008 · Momotaros (voice)
Farewell Kamen Rider Den-O: Final Countdown
2008 · Momotaros (voice)
Kamen Rider Kiva: King of the Castle in the Demon World
2008 · Penetentiary Officer Sanjo
Momotaros' King of the Crimson Castle
2008 · Momotaros (voice)
Kamen Rider Den-O: Final Trilogy Special Edition
2008 · Momotaros (voice)
Kamen Rider Den-O & Kiva: Climax Deka
2008 · Momotaros (voice), Theme Song Performance
Kamen Rider Den-O: Final Stage
2007 · Momotaros
Kamen Rider Den-O: Singing, Dancing, Great Training!!
2007 · Momotaros (voice)
Kamen Rider Den-O The Movie: I'm Born!
2007 · Momotaros (voice)
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
2007 · Momotaros (voice)
Momotaros' Summer Vacation
2007 · Momotaros (voice)
Paranoia Agent: Part 1
2004 · まにわ みつひろ
RahXephon: Pluralitas Concentio
2003 · Makoto Isshiki (voice)
Saiyuki Interactive
2002
Animation Store Manager
2002 · Ryuu Raiba (voice)
Saiyuki: Requiem
2001 · Genjo Sanzo (voice)
Reign: The Conqueror Movie
2000 · Alexander
Baby Felix & Friends
2000 · Felix The Cat
Gundam Wing: The Endless Waltz
1998 · Duo Maxwell (voice)
Twilight of the Dark Master
1997 · Shijo Tsunami (voice)
Ultraman Super Fighter Legend
1996 · Ultraseven / Ultraman Leo (voice)
X
1996 · Shougo
Yawara! Atlanta Special
1996
Violinist of Hamelin: The Movie
1996 · Raiel (voice)
The End of the Century Darling
1996 · Todorokki Kouhei (voice)
Bio Hunter
1995 · Komada
Legend of Crystania: The Motion Picture
1995 · Nasser (voice)
Wild 7: Biker Knights
1994 · Dairoku Hiba
The Irresponsible Captain Tylor: Tylor's War
1994 · Ru Baraba Dom (voice)
I'm Not an Angel!
1994 · Bunta Kouno (voice)
Love Wedge 2
1994 · Riki (voice)
Dorami-chan: A Blue Straw Hat
1994 · Crow (voice)
Genocyber
1994 · Sakomizu (voice)
Ocean Waves
1993 · Yutaka Matsuno (voice)
Suikoden Demon Century
1993 · Takateru Suga (voice)
Kiss Me on the Apple of My Eye
1993 · Naoto (voice)
Ninja Scroll
1993 · Yurimaru (voice)
Download: Devil's Circuit
1992 · Sid (voice)
Oruorane the Cat Player
1992 · The Cellist
Love Wedge 1
1992 · Riki (voice)
Ranma 1/2 the Movie 2: Nihao My Concubine
1992 · Mousse (voice)
Yawara! Go Get 'Em, Wimpy Kids!!
1992 · (voice)
Calico Cat Holmes and the Lord of the Haunted Castle
1992 · Yoshitaro Katayama (voice)
The Weathering Continent
1992 · Tieh (voice)
Moonlight Pierce
1991 · Hiroshi Takama (voice)
Inferious Interplanetary War Chronicle - Condition Green
1991 · Soo Laform (voice)
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991 · Mousse (voice)
Handsome Girl
1991 · Ichiya Kumagai (voice)
Yuukan Club
1991
Nadia: The Secret of Blue Water - The Motion Picture
1991 · Falt (voice)
Nadia: The Secret of Blue Water - Nautilus Story II
1991 · Fate (voice)
Trusty Ginjiro
1991 · Hideki Mitsui (voice)
Hisashi Eguchi's Kotobuki Goro Show
1991 · Piston Akagi (voice)
TOKYO CITY Melhen 2
1990
Marina the Manga Artist Goes to Camelot
1990 · Bijomaru Shizuka (voice)
Midoriyama High School, Koshien Edition (Movie)
1990
Milky Passion: Dougenzaka - The Castle of Love
1990 · Ootsuki (voice)
Goddamn
1990 · Hans Schultz
Heart-Coloured Killer Ticket
1990 · Chuta Misora (voice)
Ryokunohara Labyrinth - Sparkling Phantom
1990 · Hiroki Imashi
Demon Hunter Makaryūdo
1989 · Shou Kurogane (voice)
Angel Cop
1989 · Tachihara (voice)
Cinderella Express
1989 · Yuji Shimano
Scarlet Demon
1989
Hades Project: Zeorymer Extinction
1989 · Masato Akitsu / Masaki Kihara (voice)
Kaze wo Nuke!
1988
Hades Project: Zeorymer Separation
1988 · Masato Akitsu (voice), Masaki Kihara (voice)
Dragon Century
1988 · Carmine (voice)
Sunlight All Around! Ka - su - mi: You Were in My Dreams
1988 · Reporter B (voice)
Zillion: Burning Night
1988 · J.J. (voice)
Balthus: Tia's Radiance
1988 · Eud (voice)
The Samurai
1987 · Takeshi Chimatsuri
TO-Y
1987 · Shouji (voice)
Maryuu Senki
1987
Campus Special Investigator Hikaruon
1987 · Hikaru Shihodo / Hikaruon (voice)
Castle in the Sky
1986 · (voice)
Call Me Tonight
1986 · Hayata (voice)
TV shows (131)
My Ribdiculous Reincarnation
2026
PROJECT R.E.D.
2026 · GavarionTrigger / CosmoGavarion (voice)
Super Space Sheriff Gavan Infinity
2026 · Cosmo Gavarion System / Gavarion Trigger System (voice), Supreme Chancellor
SANDA
2025 · Hifumi Ōshibu (voice)
Mashin Creator Wataru
2025 · Mr. Liar (voice)
I Have a Crush at Work
2025 · Pastor (voice)
Good Bye, Dragon Life
2024 · Dio (voice)
Ranma1/2
2024 · Mousse (voice)
I Parry Everything
2024 · Carew (voice)
Kaiju No. 8
2024 · Kaiju No. 11 (voice)
Onimusha
2023 · Kojiro Sasaki (voice)
Pluto
2023 · Sahad (voice), Pluto (voice)
The Most Heretical Last Boss Queen: From Villainess to Savior
2023 · Clark Darwin (voice)
Rurouni Kenshin
2023 · Narration (voice)
HIGH CARD
2023 · Norman Kingstat (voice)
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
2022 · Momotaros (voice)
Higurashi: When They Cry - NEW
2020 · Kyousuke Irie (voice)
The Misfit of Demon King Academy
2020 · Ahide Alobo Agatze (voice)
Ascendance of a Bookworm
2019 · Eustachius (voice)
Saint Seiya: Los Caballeros del Zodiaco
2019 · Scorpio Milo (voice)
Sarazanmai
2019 · Yuri Kamome
Demon Slayer: Kimetsu no Yaiba
2019 · Muzan Kibutsuji (voice)
Star☆Twinkle PreCure
2019 · Toto Hagoromo (voice)
Saint Seiya: Saintia Sho
2018 · Scorpio Milo (voice)
Golden Kamuy
2018 · Kazuo Henmi (voice)
SWORD GAI: The Animation
2018 · Miura Takuma
The Ryuo's Work is Never Done!
2018 · Kiyotaki Kousuke (voice)
The Reflection
2017 · Michael Holden (voice)
The Laughing Salesman NEW
2017 · Shisao Kihara(Story2)
To Be Hero
2016 · Chinese Tohoku Muffler (voice)
Mob Psycho 100
2016 · Morizo Ebihara (voice), Musashi Goda (voice)
Descending Stories
2016 · Eisuke Higuchi (voice)
Saint Seiya: Soul of Gold
2015 · Scorpio Milo (voice)
Cross Ange: Rondo of Angels and Dragons
2014 · Embryo (voice)
Space Dandy
2014 · Public Prosecutor (voice)
Gingitsune: Messenger Fox of the Gods
2013 · Tatsuo Saeki (voice)
声優戦隊ボイストーム7
2013 · (voice)
Triple Combination: Transformers Go!
2013 · Gekisōmaru (voice)
Glitter Force
2012 · Hiroshi Hoshizora
Guilty Crown
2011 · Kurosu Ouma (voice)
Hunter x Hunter
2011 · Wing (voice)
Saiyuki Gaiden
2011 · Konzen Dōji (voice)
Psychic Detective Yakumo
2010 · Isshin Saitō
Katanagatari
2010 · Umigame Maniwa (voice)
Dogs: Bullets & Carnage
2009 · Ernst Rammsteiner
Cookin' Idol Ai! Mai! Main!
2009 · 柊修
A Certain Magical Index
2008 · Aleister Crowley (voice)
Momotaros' King of the Crimson Castle
2008 · Momotaros (voice)
Blade of the Immortal
2008 · Souri (voice)
Sekirei
2008 · Hiroto Minaka
Kamen Rider Den-O: Imagin Anime
2008 · Momotaros (voice)
Saiyuki Reload: Burial
2007 · Genjō Sanzō (voice)
Naruto Shippūden
2007 · Iruka Umino (voice)
Kamen Rider Den-O
2007 · Momotaros (voice)
Shonen Onmyouji
2006
Loving Angel Angelique
2006 · Luva
Higurashi: When They Cry
2006 · Kyousuke Irie (voice)
My-Otome
2005 · Rad (voice)
MÄR: Märchen Awakens Romance
2005 · Danna Toramizu
Gin'yuu Mokushiroku Meine Liebe
2004 · Ludwig Herzog von Mohn nahe Liechtenstein (voice)
Bleach
2004 · Aaroniero Arruruerie (voice)
My-Hime
2004 · Reito Kanzaki (voice)
Samurai Champloo
2004 · Yamane (voice)
Paranoia Agent
2004 · Mitsuhiro Maniwa (voice)
Requiem from the Darkness
2003 · Momosuke Yamaoka (voice)
Saint Seiya: The Hades Chapter
2002 · Milo (voice)
Mobile Suit Gundam SEED
2002 · Rau Le Creuset (voice), Rey Za Burrel (voice)
Naruto
2002 · Iruka Umino (voice)
.hack//Liminality
2002
Angelique: Twin Collection
2002 · Luva (voice), Theme Song Performance
Mirage of Blaze
2002 · Takaya Ohgi (voice)
Descendants of Darkness
2000 · Yutaka Watari (voice)
Saiyuki
2000 · Konzen Douji (voice), Genjo Sanzo (voice)
Reign: The Conqueror
1999 · Alexander (voice)
Pet Shop of Horrors
1999 · Count D (voice)
Bビーダマン爆外伝V
1999 · Kurobon
Harlock Saga - The Ring of the Nibelungs
1999
Nightwalker: The Midnight Detective
1998 · Bait
Trigun
1998 · Legato Bluesummers (voice)
Bomberman B-Daman Bakugaiden
1998
Outlaw Star
1998 · Fred (voice)
Dragoon
1997 · Rain Keeves Fearudo (voice)
Hakugei: Legend of the Moby Dick
1997
Hyper Police
1997 · Sakunoshin Chikura
B't X
1996 · Quatro (voice)
The Legend of Zorro
1996 · Don Diego de la Vega / Zorro (voice)
Special Duty Combat Unit Shinesman
1996 · Shujin Seki (voice)
Mobile Suit Gundam Wing
1995 · Duo Maxwell (voice)
Udauda Yatteru Hima wa Nee!
1995 · (voice)
Wild 7
1994 · Dairoku Hiba
The Irresponsible Captain Tylor OVA
1994 · Dom (voice)
Natsuki Crisis
1994 · Kyōtarō Himuro
Please Save My Earth
1993 · Mikuro Yakushimaru (voice)
Black Jack
1993 · Tokio Umetani (voice)
Aoki Densetsu Shoot!
1993 · Akihiko Himuro (voice)
Ninja Boy Rantaro
1993 · Hansuke Doi
The Irresponsible Captain Tylor
1993 · Ru Baraba Dom
D-1 Devastator
1992 · 谷田辺了
Ai no Kusabi
1992 · Riki (voice)
Bastard!!
1992
Princess Army: Wedding Combat
1992 · Yuuya Hashiba
Nyūin Bokki Monogatari Ojiji ni!
1991
Here Is Greenwood
1991 · Shinobu Tezuka (voice)
Flaming Rugby Boy: Dodge Danpei
1991 · Nikaidou
Izumo
1991 · Izumo (voice)
Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
1991 · Shurato
Detonator Orgun
1991 · Knock
Blazing Transfer Student
1991 · Noboru Takizawa (voice)
Akai Hayate
1991
Future GPX Cyber Formula
1991 · Jotaro Kaga
The Hakkenden: Legend of the Dog Warriors
1990 · Shino Inuzuka (voice)
Goddamn
1990 · Hans Schultz
Nadia: The Secret of Blue Water
1990 · 페이트
Yawara!
1989 · Matsuda / Eiji (voice)
Darkness of the Sea, Shadow of the Moon
1989 · Katsuyuki Touma (voice)
Dash! Yonkuro
1989
Star Cat Full House
1989
Ranma ½
1989 · Mousse (voice)
Madö King Granzört
1989 · Grunwald
Shurato
1989 · Shurato
Nightsong of Splendor
1989
Hades Project Zeorymer
1988 · (voice)
Armor Hunter Merowlink
1988 · PFC Cepres
Dragon Century
1988 · Carmine
Spirit Warrior
1988 · Kujaku (voice)
F
1988 · Gunma Akagi (voice)
Zillion
1987 · JJ
Evil Dragon War Chronicles
1987 · 錦繍 (voice)
Magical Emi, the Magic Star
1985 · Customer A (voice)
Musashi no Ken
1985 · Male member (voice)
Kamen Rider
1971 · Kamen Rider Den-O (voice), Momotaros (voice)