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Acting

Toshihiko Seki

Acting · Born 1962-06-11 · Sendai, Japon

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.

IMDb

Credits · 213

My Ribdiculous Reincarnation

2026 · GavarionTrigger / CosmoGavarion (voice)

2025 · Hifumi Ōshibu (voice)

Demon Slayer: Kimetsu no Yaiba Infinity Castle

2025 · Muzan Kibutsuji (voice)

2025 · Chongyue (Voice)

Mashin Creator Wataru

2025 · Mr. Liar (voice)

I Have a Crush at Work

2025 · Pastor (voice)

Nintama Rantarō: Invincible Master of the Dokutake Ninja

2024 · Hansuke Doi (voice)

Good Bye, Dragon Life

2024 · Dio (voice)

2024 · Mousse (voice)

I Parry Everything

2024 · Carew (voice)

2024 · Kaiju No. 11 (voice)

The Birth of Kitaro: The Mystery of GeGeGe

2023 · Kitarou's Father (voice)

2023 · Kojiro Sasaki (voice)

2023 · Sahad (voice)

The Most Heretical Last Boss Queen: From Villainess to Savior

2023 · Clark Darwin (voice)

Rurouni Kenshin

2023 · Narration (voice)

Black Clover: Sword of the Wizard King

2023 · Conrad Leto (voice)

2023 · Norman Kingstat (voice)

Demon Slayer: Kimetsu no Yaiba - Asakusa Arc

2022 · Muzan Kibutsuji (voice)

Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O

2022 · Momotaros (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)

Higurashi: When They Cry - NEW

2020 · Kyousuke Irie (voice)

Kamen Rider Den-O: The Birth of Pretty Den-O!

2020 · Momotaros (voice)

The Misfit of Demon King Academy

2020 · Ahide Alobo Agatze (voice)

Ascendance of a Bookworm

2019 · Eustachius (voice)

SAINT SEIYA: Knights of the Zodiac

2019 · Scorpio Milo (voice)

2019 · Yuri Kamome

Demon Slayer: Kimetsu no Yaiba

2019 · Muzan Kibutsuji (voice)

Demon Slayer: Kimetsu no Yaiba - Sibling's Bond

2019 · Muzan Kibutsuji (voice)

Star☆Twinkle PreCure

2019 · Toto Hagoromo (voice)

Kamen Rider Heisei Generations Forever

2018 · Momotaros / Kamen Rider Den-O Sword Form (voice)

Saint Seiya: Saintia Sho

2018 · Scorpio Milo (voice)

2018 · Kazuo Henmi (voice)

SWORD GAI: The Animation

2018 · Miura Takuma

The Ryuo's Work is Never Done!

2018 · Kiyotaki Kousuke (voice)

Mazinger Z: Infinity

2017 · Tetsuya Tsurugi (voice)

2017 · Michael Holden (voice)

The Laughing Salesman NEW

2017 · Shisao Kihara(Story2)

Kamen Rider × Super Sentai: Ultra Super Hero Wars

2017 · Momotaros - Kamen Rider Den-O Sword Form (voice)

2016 · Chinese Tohoku Muffler (voice)

2016 · Morizo Ebihara (voice)

Naruto OVA 12: The Day Naruto Became Hokage

2016 · Iruka Umino (voice)

Descending Stories

2016 · Eisuke Higuchi (voice)

Mobile Suit Gundam: The Origin II - Artesia's Sorrow

2015 · Char Aznable (voice)

Saint Seiya: Soul of Gold

2015 · Scorpio Milo (voice)

Cross Ange: Rondo of Angels and Dragons

2014 · Embryo (voice)

Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai

2014 · Kamen Rider Den-O Sword Form (voice)

2014 · Public Prosecutor (voice)

Hunter x Hunter: The Last Mission

2013 · Wing (voice)

Gingitsune: Messenger Fox of the Gods

2013 · Tatsuo Saeki (voice)

声優戦隊ボイストーム7

2013 · (voice)

Higurashi: When They Cry - Outbreak

2013 · Kyousuke Irie (voice)

Triple Combination: Transformers Go!

2013 · Gekisōmaru (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)

2012 · Hiroshi Hoshizora

2011 · Kurosu Ouma (voice)

Hunter x Hunter

2011 · Wing (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)

2011 · Konzen Dōji (voice)

Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!

2011 · Hansuke Doi (voice)

Psychic Detective Yakumo

2010 · Isshin Saitō

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)

2010 · Umigame Maniwa (voice)

Kamen Rider × Kamen Rider W & Decade: Movie War 2010

2009 · Kamen Rider Den-O (voice)

Kamen Rider Decade: All Riders vs. Dai-Shocker

2009 · Momotaros / Kamen Rider Den-O (voice)

Dogs: Bullets & Carnage

2009 · Ernst Rammsteiner

Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship

2009 · Momotaros (voice)

Cookin' Idol Ai! Mai! Main!

A Certain Magical Index

2008 · Aleister Crowley (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)

Blade of the Immortal

2008 · Souri (voice)

2008 · Hiroto Minaka

Kamen Rider Den-O: Imagin Anime

2008 · Momotaros (voice)

Kamen Rider Den-O & Kiva: Climax Deka

2008 · Momotaros (voice)

Kamen Rider Den-O The Movie: I'm Born!

2007 · Momotaros (voice)

Saiyuki Reload: Burial

2007 · Genjō Sanzō (voice)

Naruto Shippūden

2007 · Iruka Umino (voice)

Kamen Rider Den-O

2007 · Momotaros (voice)

Shonen Onmyouji

Higurashi: When They Cry

2006 · Kyousuke Irie (voice)

2005 · Rad (voice)

MÄR: Märchen Awakens Romance

2005 · Danna Toramizu

Gin'yuu Mokushiroku Meine Liebe

2004 · Ludwig Herzog von Mohn nahe Liechtenstein (voice)

2004 · Aaroniero Arruruerie (voice)

2004 · Reito Kanzaki (voice)

Samurai Champloo

2004 · Yamane (voice)

2004 · Mitsuhiro Maniwa (voice)

Paranoia Agent: Part 1

2004 · まにわみつひろ

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)

2002 · Iruka Umino (voice)

Saiyuki Interactive

Animation Store Manager

2002 · Ryuu Raiba (voice)

Angelique: Twin Collection

2002 · Luva (voice)

Mirage of Blaze

2002 · Takaya Ohgi (voice)

Saiyuki: Requiem

2001 · Genjo Sanzo (voice)

Reign: The Conqueror Movie

2000 · Alexander

Descendants of Darkness

2000 · Yutaka Watari (voice)

2000 · Konzen Douji (voice)

Baby Felix & Friends

2000 · Felix The Cat

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

Gundam Wing: The Endless Waltz

1998 · Duo Maxwell (voice)

Nightwalker: The Midnight Detective

1998 · Legato Bluesummers (voice)

Bomberman B-Daman Bakugaiden

1998 · Fred (voice)

Twilight of the Dark Master

1997 · Shijo Tsunami (voice)

Chimera: Angel of Death

1997 · Rain Keeves Fearudo (voice)

Hakugei: Legend of the Moby Dick

1997 · Sakunoshin Chikura

Yawara! Atlanta Special

1996 · Quatro (voice)

The Legend of Zorro

1996 · Don Diego de la Vega / Zorro

Special Duty Combat Unit Shinesman

1996 · Shujin Seki (voice)

The End of the Century Darling

1996 · Todorokki Kouhei (voice)

Mobile Suit Gundam Wing

1995 · Duo Maxwell (voice)

Udauda Yatteru Hima wa Nee!

1995 · (voice)

Wild 7: Biker Knights

1994 · Dairoku Hiba

1994 · Dairoku Hiba

The Irresponsible Captain Tylor OVA

1994 · Dom (voice)

I'm Not an Angel!

1994 · Bunta Kouno (voice)

1994 · Riki (voice)

Dorami-chan: A Blue Straw Hat

1994 · Crow (voice)

1994 · Sakomizu (voice)

1994 · Kyōtarō Himuro

Please Save My Earth

1993 · Mikuro Yakushimaru (voice)

1993 · Tokio Umetani (voice)

Aoki Densetsu Shoot!

1993 · Akihiko Himuro (voice)

1993 · Yutaka Matsuno (voice)

Suikoden Demon Century

1993 · Takateru Suga (voice)

1993 · Yurimaru (voice)

Ninja Boy Rantaro

1993 · Hansuke Doi

The Irresponsible Captain Tylor

1993 · Ru Baraba Dom

Download: Devil's Circuit

1992 · Sid (voice)

1992 · 谷田辺了

Oruorane the Cat Player

1992 · The Cellist

1992 · Riki (voice)

1992 · Riki (voice)

Ranma 1/2 the Movie 2: Nihao My Concubine

1992 · Mousse (voice)

Yawara! Go Get 'Em, Wimpy Kids!!

1992 · (voice)

Princess Army: Wedding Combat

1992 · Yuuya Hashiba

Calico Cat Holmes and the Lord of the Haunted Castle

1992 · Yoshitaro Katayama (voice)

The Weathering Continent

1992 · Tieh (voice)

Nyūin Bokki Monogatari Ojiji ni!

Here Is Greenwood

1991 · Shinobu Tezuka (voice)

Ranma 1/2 the Movie: Big Trouble in Nekonron, China

1991 · Mousse (voice)

Flaming Rugby Boy: Dodge Danpei

1991 · Nikaidou

1991 · Ichiya Kumagai (voice)

1991 · Izumo (voice)

Legend of Heavenly Sphere Shurato: The Secret Feud of Creation

1991 · Shurato

Detonator Orgun

Nadia: The Secret of Blue Water - The Motion Picture

1991 · Falt (voice)

1991 · Hideki Mitsui (voice)

Hisashi Eguchi's Kotobuki Goro Show

1991 · Piston Akagi (voice)

Blazing Transfer Student

1991 · Noboru Takizawa (voice)

Future GPX Cyber Formula

1991 · Jotaro Kaga

The Hakkenden: Legend of the Dog Warriors

1990 · Shino Inuzuka (voice)

Marina the Manga Artist Goes to Camelot

1990 · Bijomaru Shizuka (voice)

Milky Passion: Dougenzaka - The Castle of Love

1990 · Ootsuki (voice)

1990 · Hans Schultz

Nadia: The Secret of Blue Water

1990 · Fejto (voice)

Ryokunohara Labyrinth - Sparkling Phantom

1990 · Hiroki Imashi

Demon Hunter Makaryūdo

1989 · Shou Kurogane (voice)

1989 · Matsuda / Eiji (voice)

Darkness of the Sea, Shadow of the Moon

1989 · Katsuyuki Touma (voice)

1989 · Tachihara (voice)

Cinderella Express

1989 · Yuji Shimano

Star Cat Full House

1989 · Mousse (voice)

Madö King Granzört

1989 · Grunwald

1989 · Shurato

Nightsong of Splendor

Hades Project: Zeorymer Extinction

1989 · Masato Akitsu / Masaki Kihara (voice)

Hades Project: Zeorymer Separation

1988 · Masato Akitsu (voice)

Hades Project Zeorymer

1988 · (voice)

Armor Hunter Merowlink

1988 · PFC Cepres

1988 · Carmine (voice)

1988 · Carmine

Sunlight All Around! Ka - su - mi: You Were in My Dreams

1988 · Reporter B (voice)

Zillion: Burning Night

1988 · J.J. (voice)

1988 · Kujaku (voice)

Balthus: Tia's Radiance

1988 · Eud (voice)

1988 · Gunma Akagi (voice)

1987 · Takeshi Chimatsuri

1987 · Shouji (voice)

Evil Dragon War Chronicles

1987 · 錦繍 (voice)

Campus Special Investigator Hikaruon

1987 · Hikaru Shihodo / Hikaruon (voice)

Castle in the Sky

1986 · Additional Voices (voice)

Call Me Tonight

1986 · Hayata (voice)

Magical Emi, the Magic Star

1985 · Customer A (voice)

1971 · Kamen Rider Den-O (voice)

Toshihiko Seki · MediaMark