Toshihiko Seki

Acting

The MovieWise Take

Refining cinematic analysis...

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.

Known For

Naruto Shippūden

Iruka Umino (voice)

Demon Slayer: Kimetsu no Yaiba

Muzan Kibutsuji (voice)

Naruto

Iruka Umino (voice)

Castle in the Sky

Additional Voices (voice)

Bleach

Aaroniero Arruruerie (voice)

Hunter x Hunter

Wing (voice)

Ranma ½

Mousse (voice)

Mob Psycho 100

Morizo Ebihara (voice)

Full Filmography

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

Quick Facts

Toshihiko Seki

The MovieWise Take

Biography

Known For

Full Filmography

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