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Toshihiko Seki

Personal Information

Known ForActing
GenderMale
Birth DateJun 11, 1962 (64 years old)
Zodiac Sign♊Gemini
Place of BirthSendai, Japon
Career Span1971 – Present (56 yrs)
Known Credits244 Titles
Official Links
Official WebsiteIMDbWWikidata
ActingPopularity Score 2.7

Toshihiko Seki

Also known as:せき としひこ关俊彦関 俊彦
Total Works

244

34 movies • 8 shows

Avg Rating

7.3 / 10

across rated releases

Box Office

—

worldwide gross

Global Reach

#3

TMDB star index

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.

Signature Roles & Milestones

Naruto Shippūden
8.5
Naruto Shippūden
2007•anime
as Iruka Umino (voice)
Demon Slayer: Kimetsu no Yaiba
8.6
as Muzan Kibutsuji (voice)
Naruto
8.4
Naruto
2002•anime
as Iruka Umino (voice)
Castle in the Sky
8.0
Castle in the Sky
1986•anime
as (voice)

Photos & Headshots1

Full Filmography & Credits

Showing 244 titles featuring Toshihiko Seki

Naruto Shippūden
8.5
Naruto Shippūden
2007•anime

as Iruka Umino (voice)

Demon Slayer: Kimetsu no Yaiba
8.6

as Muzan Kibutsuji (voice)

Naruto
8.4
Naruto
2002•anime

as Iruka Umino (voice)

Castle in the Sky
8.0
Castle in the Sky
1986•anime

as (voice)

Demon Slayer: Kimetsu no Yaiba Infinity Castle
8.8

as Muzan Kibutsuji (voice)

Bleach
8.4
Bleach
2004•anime

as Aaroniero Arruruerie (voice)

Hunter x Hunter
8.7
Hunter x Hunter
2011•anime

as Wing (voice)

Ranma ½
8.6
Ranma ½
1989•anime

as Mousse (voice)

Mob Psycho 100
8.5
Mob Psycho 100
2016•anime

as Morizo Ebihara (voice)

Road to Ninja: Naruto the Movie
7.4

as Iruka Umino (voice)

Ocean Waves
6.4
Ocean Waves
1993•anime

as Yutaka Matsuno (voice)

The Misfit of Demon King Academy
8.4

as Ahide Alobo Agatze (voice)

Samurai Champloo
8.3
Samurai Champloo
2004•anime

as Yamane (voice)

Kaiju No. 8
8.4
Kaiju No. 8
2024•anime

as Kaiju No. 11 (voice)

Ninja Scroll
7.8
Ninja Scroll
1993•anime

as Yurimaru (voice)

Saint Seiya: Soul of Gold
8.0

as Scorpio Milo (voice)

SAINT SEIYA: Knights of the Zodiac
7.4
1 eps

as Scorpio Milo (voice)

My Hero Academia: World Heroes' Mission
7.6

as Eddie Soul (voice)

TRIGUN
8.1
TRIGUN
1998•anime

as Legato Bluesummers (voice)

Black Clover: Sword of the Wizard King
8.1

as Conrad Leto (voice)

Paranoia Agent
7.9
Paranoia Agent
2004•anime

as Mitsuhiro Maniwa (voice)

Mazinger Z: Infinity
7.0

as Tetsuya Tsurugi (voice)

Saint Seiya: Saintia Sho
7.6

as Scorpio Milo (voice)

PLUTO
7.8
PLUTO
2023•anime

as Pluto (voice)

Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
7.9

as Muzan Kibutsuji (voice)

Higurashi: When They Cry
7.7

as Kyousuke Irie (voice)

Guilty Crown
7.3
Guilty Crown
2011•anime

as Kurosu Ouma (voice)

Hunter x Hunter: The Last Mission
7.0

as Wing (voice)

A Certain Magical Index
7.5

as Aleister Crowley (voice)

Ranma1/2
8.1
Ranma1/2
2024•anime

as Mousse (voice)

Detective Conan: Quarter of Silence
7.1

as Shogo Hikawa (voice)

Ranma 1/2 the Movie 2: Nihao My Concubine
7.9

as Mousse (voice)

Rurouni Kenshin
8.3
Rurouni Kenshin
2023•anime

as Narration (voice)

Ascendance of a Bookworm
8.1

as Eustachius (voice)

Space Dandy
7.5
Space Dandy
2014•anime

as Public Prosecutor (voice)

Cross Ange: Rondo of Angels and Dragons
8.2

as Embryo (voice)

Ranma 1/2 the Movie: Big Trouble in Nekonron, China
7.3

as Mousse (voice)

Mobile Suit Gundam Wing
7.9

as Duo Maxwell (voice)

Sekirei
7.4
Sekirei
2008•anime

as Hiroto Minaka

Kamen Rider
6.4
2 eps
Kamen Rider
1971•series

as Kamen Rider Den-O (voice)

Saint Seiya: The Hades Chapter
8.0

as Milo (voice)

B'T X
8.3
B'T X
1996•anime

as Quatro (voice)

Golden Kamuy
7.6
Golden Kamuy
2018•anime

as Kazuo Henmi (voice)

I Parry Everything
7.9
I Parry Everything
2024•anime

as Carew (voice)

Nadia: The Secret of Blue Water
7.4

as Fejto (voice)

Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
7.6

as Muzan Kibutsuji (voice)

Onimusha
7.5
Onimusha
2023•anime

as Kojiro Sasaki (voice)

X
6.2
X
1996•anime

as Shougo

Naruto OVA 12: The Day Naruto Became Hokage
7.4

as Iruka Umino (voice)

The Most Heretical Last Boss Queen: From Villainess to Savior
8.0

as Clark Darwin (voice)

Katanagatari
7.2
Katanagatari
2010•anime

as Umigame Maniwa (voice)

Mobile Suit Gundam SEED
7.6

as Rau Le Creuset (voice)

Descending Stories
8.0
Descending Stories
2016•anime

as Eisuke Higuchi (voice)

Outlaw Star
7.5
Outlaw Star
1998•anime

as Fred (voice)

Higurashi: When They Cry - NEW
7.2

as Kyousuke Irie (voice)

Gundam Wing: The Endless Waltz
7.3

as Duo Maxwell (voice)

Bio Hunter
5.8
Bio Hunter
1995•anime

as Komada

Pet Shop of Horrors
6.9

as Count D (voice)

SWORD GAI: The Animation
6.7

as Miura Takuma

My-Hime
6.6
My-Hime
2004•anime

as Reito Kanzaki (voice)

The Ryuo's Work is Never Done!
6.5

as Kiyotaki Kousuke (voice)

SANDA
7.5
SANDA
2025•anime

as Hifumi Ōshibu (voice)

Mobile Suit Gundam: The Origin II – Artesia's Sorrow
7.4

as Char Aznable (voice)

Genocyber
5.6
Genocyber
1994•anime

as Sakomizu (voice)

Glitter Force
7.7
Glitter Force
2012•anime

as Hiroshi Hoshizora

Kamen Rider Heisei Generations Forever
6.2

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

HIGH CARD
6.8
HIGH CARD
2023•anime

as Norman Kingstat (voice)

Angel Cop
6.2
Angel Cop
1989•anime

as Tachihara (voice)

Sarazanmai
6.8
Sarazanmai
2019•anime

as Yuri Kamome

Good Bye, Dragon Life
7.5

as Dio (voice)

The Birth of Kitaro: The Mystery of GeGeGe
7.4

as Kitarou's Father (voice)

Bastard!!
5.7
Bastard!!
1992•anime
Twilight of the Dark Master
5.3

as Shijo Tsunami (voice)

The Legend of Zorro
6.8

as Don Diego de la Vega / Zorro

Ninja Boy Rantaro
6.8
Ninja Boy Rantaro
1993•anime

as Hansuke Doi

To Be Hero
6.1
To Be Hero
2016•anime

as Chinese Tohoku Muffler (voice)

Blade of the Immortal
6.1

as Souri (voice)

Kamen Rider × Super Sentai: Ultra Super Hero Wars
5.7

as Momotaros - Kamen Rider Den-O Sword Form (voice)

Nightwalker: The Midnight Detective
6.2

as Bait

My-Otome
7.2
My-Otome
2005•anime

as Rad (voice)

Kamen Rider × Super Sentai: Super Hero Wars
6.6

as Momotaros - Kamen Rider Den-O Sword Form (voice)

Reign: The Conqueror
6.5

as Alexander (voice)

Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
6.3

as Kamen Rider Den-O Sword Form (voice)

Saiyuki
6.3
Saiyuki
2000•anime

as Genjo Sanzo (voice)

Shurato
7.8
Shurato
1989•anime

as Shurato

I Have a Crush at Work
7.2

as Pastor (voice)

Yawara! Atlanta Special
6.5
Nadia: The Secret of Blue Water - The Motion Picture
5.1

as Falt (voice)

Higurashi: When They Cry - Outbreak
6.6

as Kyousuke Irie (voice)

Kamen Rider × Kamen Rider W & Decade: Movie War 2010
6.2

as Kamen Rider Den-O (voice)

Ai no Kusabi
5.9
Ai no Kusabi
1992•anime

as Riki (voice)

My Ribdiculous Reincarnation
7.2
The Irresponsible Captain Tylor
7.6

as Ru Baraba Dom

Kamen Rider Decade: All Riders vs. Dai-Shocker
6.5

as Momotaros / Kamen Rider Den-O (voice)

OOO, Den-O, All Riders: Let's Go Kamen Riders
6.3

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

Call Me Tonight
4.6
Call Me Tonight
1986•anime

as Hayata (voice)

Kamen Rider Den-O The Movie: I'm Born!
7.1

as Momotaros (voice)

Descendants of Darkness
6.3

as Yutaka Watari (voice)

Madö King Granzört
8.6

as Grunwald

Aoki Densetsu Shoot!
7.1

as Akihiko Himuro (voice)

Flaming Rugby Boy: Dodge Danpei
8.1

as Nikaidou

Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
6.1

as Momotaros (voice) / Kamen Rider Den-O (voice)

Download: Devil's Circuit
6.5

as Sid (voice)

Psychic Detective Yakumo
7.0

as Isshin Saitō

MÄR: Märchen Awakens Romance
8.0

as Danna Toramizu

Zillion
7.0
Zillion
1987•anime

as JJ

Black Jack
6.7
Black Jack
1993•anime

as Tokio Umetani (voice)

Star☆Twinkle PreCure
7.5

as Toto Hagoromo (voice)

Saiyuki: Requiem
6.4
Saiyuki: Requiem
2001•anime

as Genjo Sanzo (voice)

Hades Project: Zeorymer Separation
4.1

as Masato Akitsu (voice)

Kamen Rider Kiva: King of the Castle in the Demon World
6.8

as Penetentiary Officer Sanjo

The Weathering Continent
5.5

as Tieh (voice)

Mirage of Blaze
5.3
Mirage of Blaze
2002•anime

as Takaya Ohgi (voice)

Requiem from the Darkness
6.2

as Momosuke Yamaoka (voice)

Magical Emi, the Magic Star
6.3

as Customer A (voice)

Gingitsune: Messenger Fox of the Gods
7.3

as Tatsuo Saeki (voice)

THE REFLECTION
5.2
THE REFLECTION
2017•anime

as Michael Holden (voice)

Kamen Rider Den-O & Kiva: Climax Deka
7.6

as Momotaros (voice)

Yawara!
6.7
Yawara!
1989•anime

as Matsuda / Eiji (voice)

Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
5.8

as Momotaros (voice)

Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
5.9

as Momotaros (voice)

Reign: The Conqueror Movie
7.5

as Alexander

Dragon Century
7.1
Dragon Century
1988•anime

as Carmine

Hakugei: Legend of the Moby Dick
8.2
Dogs: Bullets & Carnage
6.2

as Ernst Rammsteiner

Suikoden Demon Century
6.0

as Takateru Suga (voice)

Farewell Kamen Rider Den-O: Final Countdown
7.3

as Momotaros (voice)

Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
5.3

as Momotaros (voice)

Animation Store Manager
4.7

as Ryuu Raiba (voice)

Saiyuki Gaiden
4.7
Saiyuki Gaiden
2011•anime

as Konzen Dōji (voice)

Saiyuki Reload: Burial
5.6

as Genjō Sanzō (voice)

Harlock Saga - The Ring of the Nibelungs
7.3
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
5.4

as Momotaros (voice)

TO-Y
7.8
TO-Y
1987•anime

as Shouji (voice)

Nintama Rantarō: Invincible Master of the Dokutake Ninja
7.0

as Hansuke Doi (voice)

Yawara! Go Get 'Em, Wimpy Kids!!
5.3

as (voice)

Maryuu Senki
3.5
Maryuu Senki
1987•anime
Hyper Police
9.2
Hyper Police
1997•anime

as Sakunoshin Chikura

The Samurai
3.8
The Samurai
1987•anime

as Takeshi Chimatsuri

Zillion: Burning Night
7.0

as J.J. (voice)

Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
5.6

as Hansuke Doi (voice)

Dorami-chan: A Blue Straw Hat
6.2

as Crow (voice)

Izumo
5.0
Izumo
1991•anime

as Izumo (voice)

Spirit Warrior
7.2
Spirit Warrior
1988•anime

as Kujaku (voice)

Armor Hunter Merowlink
6.8

as PFC Cepres

The Hakkenden: Legend of the Dog Warriors
7.2

as Shino Inuzuka (voice)

The Laughing Salesman NEW
6.2

as Shisao Kihara(Story2)

Detonator Orgun
6.9
Detonator Orgun
1991•anime

as Knock

Please Save My Earth
4.8

as Mikuro Yakushimaru (voice)

Kamen Rider Den-O
8.6
49 eps
Kamen Rider Den-O
2007•series

as Momotaros (voice)

Mashin Creator Wataru
7.2

as Mr. Liar (voice)

Shonen Onmyouji
7.0
Shonen Onmyouji
2006•anime
Balthus: Tia's Radiance
5.0

as Eud (voice)

Demon Hunter Makaryūdo
5.8

as Shou Kurogane (voice)

Campus Special Investigator Hikaruon
7.0

as Hikaru Shihodo / Hikaruon (voice)

Love Wedge 1
6.8
Love Wedge 1
1992•anime

as Riki (voice)

Love Wedge 2
6.8
Love Wedge 2
1994•anime

as Riki (voice)

The Irresponsible Captain Tylor OVA
7.2

as Dom (voice)

Here Is Greenwood
7.3
Here Is Greenwood
1991•anime

as Shinobu Tezuka (voice)

Dash! Yonkuro
6.8
Dash! Yonkuro
1989•anime
F
6.5
F
1988•anime

as Gunma Akagi (voice)

Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
8.0

as Shurato

PROJECT R.E.D.
5.8
23 eps
PROJECT R.E.D.
2026•series

as GavarionTrigger / CosmoGavarion (voice)

The End of the Century Darling
4.0

as Todorokki Kouhei (voice)

Cinderella Express
2.0
Cinderella Express
1989•anime

as Yuji Shimano

Hisashi Eguchi's Kotobuki Goro Show
4.7

as Piston Akagi (voice)

Sunlight All Around! Ka - su - mi: You Were in My Dreams
3.0

as Reporter B (voice)

Kamen Rider Den-O: The Birth of Pretty Den-O!
8.0

as Momotaros (voice)

Blazing Transfer Student
6.7

as Noboru Takizawa (voice)

Hades Project Zeorymer
6.0

as (voice)

Akai Hayate
4.3
Akai Hayate
1991•anime
Handsome Girl
3.0
Handsome Girl
1991•anime

as Ichiya Kumagai (voice)

Ryokunohara Labyrinth - Sparkling Phantom
3.5

as Hiroki Imashi

Dragon Century
6.0
Dragon Century
1988•anime

as Carmine (voice)

Hades Project: Zeorymer Extinction
4.7

as Masato Akitsu / Masaki Kihara (voice)

Oruorane the Cat Player
4.0

as The Cellist

Chimera: Angel of Death
4.5

as Ron (voice)

Baby Felix & Friends
4.0

as Felix The Cat

Dragoon
4.5
Dragoon
1997•anime

as Rain Keeves Fearudo (voice)

Gin'yuu Mokushiroku Meine Liebe
4.5

as Ludwig Herzog von Mohn nahe Liechtenstein (voice)

Natsuki Crisis
5.5
Natsuki Crisis
1994•anime

as Kyōtarō Himuro

Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
9.5
3 eps

as Momotaros (voice)

Darkness of the Sea, Shadow of the Moon
6.0

as Katsuyuki Touma (voice)

Triple Combination: Transformers Go!
8.0

as Gekisōmaru (voice)

D-1 Devastator
7.0
D-1 Devastator
1992•anime

as 谷田辺了

Evil Dragon War Chronicles
4.5
2 eps

as 錦繍 (voice)

Nightsong of Splendor
6.5
Mobile Suit Gundam SEED HD Remaster
8.5

as Rey Za Burrel (voice), Rau Le Creuset (voice)

I'm Not an Angel!
6.0
I'm Not an Angel!
1994•anime

as Bunta Kouno (voice)

Marina the Manga Artist Goes to Camelot
1.0

as Bijomaru Shizuka (voice)

Wild 7: Biker Knights
2.0

as Dairoku Hiba

Calico Cat Holmes and the Lord of the Haunted Castle
7.0

as Yoshitaro Katayama (voice)

Milky Passion: Dougenzaka - The Castle of Love
2.0

as Ootsuki (voice)

Yuukan Club
7.0
Yuukan Club
1991•anime
Scarlet Demon
4.0
Scarlet Demon
1989•anime
Saiyuki Interactive
4.0
Trusty Ginjiro
4.0
Trusty Ginjiro
1991•anime

as Hideki Mitsui (voice)

Paranoia Agent: Part 1
5.0

as まにわ みつひろ

The Irresponsible Captain Tylor: Tylor's War
10.0

as Ru Baraba Dom (voice)

Princess Army: Wedding Combat
7.0

as Yuuya Hashiba

Kamen Rider Den-O: Imagin Anime
6.0

as Momotaros (voice)

Special Duty Combat Unit Shinesman
7.0

as Shujin Seki (voice)

Cookin' Idol Ai! Mai! Main!
8.0

as 柊修

Bomberman B-Daman Bakugaiden
6.0
Goddamn
8.0
Goddamn
1990•anime

as Hans Schultz

Wild 7
8.0
Wild 7
1994•anime

as Dairoku Hiba

U Takes Terra
4.0
U Takes Terra
2025•anime

as Chongyue (Voice)

Musashi no Ken
6.0
Musashi no Ken
1985•anime

as Male member (voice)

TOKYO CITY Melhen 2
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!

as Momotaros (voice)

Kamen Rider Den-O: Final Trilogy Special Edition

as Momotaros (voice)

Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-

as Momotaros

Nadia: The Secret of Blue Water - Nautilus Story II

as Fate (voice)

Kamen Rider Kiva & Den-O: DenLiner, Into Space!

as Momotaros (voice)

Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-

as Momotaros (voice)

Heart-Coloured Killer Ticket

as Chuta Misora (voice)

Moonlight Pierce
Moonlight Pierce
1991•anime

as Hiroshi Takama (voice)

Kiss Me on the Apple of My Eye

as Naoto (voice)

OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~

as Momotaros (voice)

Kamen Rider Den-O: Singing, Dancing, Great Training!!

as Momotaros (voice)

Goddamn
Goddamn
1990•anime

as Hans Schultz

Kamen Rider Decade: Final Stage

as Momotaros / Kamen Rider Den-O (Sword Form)

Inferious Interplanetary War Chronicle - Condition Green

as Soo Laform (voice)

Midoriyama High School, Koshien Edition (Movie)
Kamen Rider Den-O: Final Stage

as Momotaros

Kamen Rider × Kamen Rider × Kamen Rider The Movie Cho-Den-O Trilogy Movie Released Memorial Special Stage: Imagin Super Climax Tour 2010
Violinist of Hamelin: The Movie

as Raiel (voice)

Ultraman Super Fighter Legend

as Ultraseven / Ultraman Leo (voice)

Kaze wo Nuke!
Kaze wo Nuke!
1988•anime
Momotaros' Summer Vacation

as Momotaros (voice)

Imagin Anime: Momotaros Forever!/Imajin Terminal Station

as Momotaros (voice)

Momotaros' King of the Crimson Castle

as Momotaros (voice)

10th Anniversary Project: Masked Rider LIVE & SHOW

as Kamen Rider Den-O Sword Form (voice)

Super Space Sheriff Gavan Infinity: Jo-Chaku Course

as Gavarion Trigger System Voice (voice)

Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi

as Cosmo Gavarion System Voice / Gavarion Trigger System Voice

Future GPX Cyber Formula

as Jotaro Kaga

Loving Angel Angelique

as Luva

Angelique: Twin Collection

as Luva (voice)

Udauda Yatteru Hima wa Nee!

as (voice)

声優戦隊ボイストーム7

as (voice)

Bビーダマン爆外伝V

as Kurobon

Nyūin Bokki Monogatari Ojiji ni!
2 eps
Momotaros' King of the Crimson Castle
4 eps

as Momotaros (voice)

Star Cat Full House