Toshihiko Seki
Acting
Born: June 11, 1962 (age 64) · Sendai, Japon
Highest Rated
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
2007
Demon Slayer: Kimetsu no Yaiba
2019
Naruto
2002
Castle in the Sky
1986
Bleach
2004
Hunter x Hunter
2011
Ranma ½
1989
Mob Psycho 100
2016
Road to Ninja: Naruto the Movie
2012
Ocean Waves
1993
Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025
The Misfit of Demon King Academy
2020
Photos (1)
Movies (113)
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Muzan Kibutsuji (voice)
Castle in the Sky
Additional Voices (voice)
Black Clover: Sword of the Wizard King
Conrad Leto (voice)
My Hero Academia: World Heroes' Mission
Eddie Soul (voice)
Detective Conan: Quarter of Silence
Shogo Hikawa (voice)
Road to Ninja: Naruto the Movie
Iruka Umino (voice)
Ninja Scroll
Yurimaru (voice)
Mazinger Z: Infinity
Tetsuya Tsurugi (voice)
Ocean Waves
Yutaka Matsuno (voice)
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
Muzan Kibutsuji (voice)
Gundam Wing: The Endless Waltz
Duo Maxwell (voice)
Hunter x Hunter: The Last Mission
Wing (voice)
X
Shougo
Ranma 1/2 the Movie 2: Nihao My Concubine
Mousse (voice)
Angel Cop
Tachihara (voice)
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
Muzan Kibutsuji (voice)
Mobile Suit Gundam: The Origin II - Artesia's Sorrow
Char Aznable (voice)
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
Mousse (voice)
Wild 7: Biker Knights
Dairoku Hiba
Kamen Rider Heisei Generations Forever
Momotaros / Kamen Rider Den-O Sword Form (voice)
Kamen Rider × Super Sentai: Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
Kamen Rider Decade: All Riders vs. Dai-Shocker
Momotaros / Kamen Rider Den-O (voice)
Kamen Rider × Kamen Rider W & Decade: Movie War 2010
Kamen Rider Den-O (voice)
Saiyuki: Requiem
Genjo Sanzo (voice)
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
Kamen Rider Den-O Sword Form (voice)
Balthus: Tia's Radiance
Eud (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders
Momotaros / Kamen Rider Den-O Sword Form (voice)
Reign: The Conqueror Movie
Alexander
Kamen Rider Kiva: King of the Castle in the Demon World
Penetentiary Officer Sanjo
Hades Project: Zeorymer Separation
Masato Akitsu (voice)
Hades Project: Zeorymer Separation
Masaki Kihara (voice)
Baby Felix & Friends
Felix The Cat
Kamen Rider × Super Sentai: Ultra Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
Campus Special Investigator Hikaruon
Hikaru Shihodo / Hikaruon (voice)
Nintama Rantarō: Invincible Master of the Dokutake Ninja
Hansuke Doi (voice)
The Birth of Kitaro: The Mystery of GeGeGe
Kitarou's Father (voice)
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
Momotaros (voice)
Naruto OVA 12: The Day Naruto Became Hokage
Iruka Umino (voice)
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
Momotaros (voice)
Farewell Kamen Rider Den-O: Final Countdown
Momotaros (voice)
The Samurai
Takeshi Chimatsuri
Ultraman Super Fighter Legend
Ultraseven / Ultraman Leo (voice)
Kamen Rider Den-O The Movie: I'm Born!
Momotaros (voice)
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
Cosmo Gavarion System Voice / Gavarion Trigger System Voice
Kamen Rider Den-O & Kiva: Climax Deka
Momotaros (voice)
Bio Hunter
Komada
Nadia: The Secret of Blue Water - The Motion Picture
Falt (voice)
Inferious Interplanetary War Chronicle - Condition Green
Soo Laform (voice)
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
Momotaros (voice) / Kamen Rider Den-O (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
Momotaros (voice)
Kamen Rider Den-O: Final Trilogy Special Edition
Momotaros (voice)
Twilight of the Dark Master
Shijo Tsunami (voice)
Call Me Tonight
Hayata (voice)
Yawara! Atlanta Special
1996
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
Gavarion Trigger System Voice (voice)
Heart-Coloured Killer Ticket
Chuta Misora (voice)
Trusty Ginjiro
Hideki Mitsui (voice)
Genocyber
Sakomizu (voice)
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
Momotaros (voice)
Sunlight All Around! Ka - su - mi: You Were in My Dreams
Reporter B (voice)
Hisashi Eguchi's Kotobuki Goro Show
Piston Akagi (voice)
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
Hansuke Doi (voice)
Goddamn
Hans Schultz
Nadia: The Secret of Blue Water - Nautilus Story II
Fate (voice)
Love Wedge 2
Riki (voice)
Violinist of Hamelin: The Movie
Raiel (voice)
Scarlet Demon
1989
The Weathering Continent
Tieh (voice)
Kamen Rider Den-O: Final Stage
Momotaros
Kamen Rider × Kamen Rider × Kamen Rider The Movie Cho-Den-O Trilogy Movie Released Memorial Special Stage: Imagin Super Climax Tour 2010
2010
Higurashi: When They Cry - Outbreak
Kyousuke Irie (voice)
Moonlight Pierce
Hiroshi Takama (voice)
Download: Devil's Circuit
Sid (voice)
Zillion: Burning Night
J.J. (voice)
Kamen Rider Den-O: The Birth of Pretty Den-O!
Momotaros (voice)
Momotaros' Summer Vacation
Momotaros (voice)
The End of the Century Darling
Todorokki Kouhei (voice)
Love Wedge 1
Riki (voice)
Kamen Rider Den-O: Singing, Dancing, Great Training!!
Momotaros (voice)
Kiss Me on the Apple of My Eye
Naoto (voice)
Momotaros' King of the Crimson Castle
Momotaros (voice)
Yawara! Go Get 'Em, Wimpy Kids!!
(voice)
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
Momotaros (voice)
TOKYO CITY Melhen 2
1990
Suikoden Demon Century
Takateru Suga (voice)
Ryokunohara Labyrinth - Sparkling Phantom
Hiroki Imashi
Imagin Anime: Momotaros Forever!/Imajin Terminal Station
Momotaros (voice)
Oruorane the Cat Player
The Cellist
TO-Y
Shouji (voice)
I'm Not an Angel!
Bunta Kouno (voice)
Animation Store Manager
Ryuu Raiba (voice)
Kamen Rider Kiva & Den-O: DenLiner, Into Space!
Momotaros (voice)
10th Anniversary Project: Masked Rider LIVE & SHOW
Kamen Rider Den-O Sword Form (voice)
Demon Hunter Makaryūdo
Shou Kurogane (voice)
Marina the Manga Artist Goes to Camelot
Bijomaru Shizuka (voice)
Yuukan Club
1991
Saiyuki Interactive
2002
Calico Cat Holmes and the Lord of the Haunted Castle
Yoshitaro Katayama (voice)
Handsome Girl
Ichiya Kumagai (voice)
Midoriyama High School, Koshien Edition (Movie)
1990
Cinderella Express
Yuji Shimano
Hades Project: Zeorymer Extinction
Masato Akitsu / Masaki Kihara (voice)
Paranoia Agent: Part 1
まにわ みつひろ
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
Momotaros (voice)
Maryuu Senki
1987
Dorami-chan: A Blue Straw Hat
Crow (voice)
Dragon Century
Carmine (voice)
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
Momotaros (voice)
Kaze wo Nuke!
1988
Kamen Rider Decade: Final Stage
Momotaros / Kamen Rider Den-O (Sword Form)
Milky Passion: Dougenzaka - The Castle of Love
Ootsuki (voice)
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
Momotaros
Chimera: Angel of Death
Ron
TV Shows (133)
Bleach
Aaroniero Arruruerie (voice)
Kamen Rider
Kamen Rider Den-O (voice) · 2 eps
Kamen Rider
Momotaros (voice) · 54 eps
Hunter x Hunter
Wing (voice) · 10 eps
Naruto
Iruka Umino (voice) · 220 eps
Naruto Shippūden
Iruka Umino (voice) · 320 eps
Ranma1/2
Mousse (voice) · 4 eps
Golden Kamuy
Kazuo Henmi (voice) · 62 eps
Rurouni Kenshin
Narration (voice) · 21 eps
Ranma ½
Mousse (voice) · 13 eps
Mob Psycho 100
Morizo Ebihara (voice) · 1 eps
Mob Psycho 100
Musashi Goda (voice) · 14 eps
A Certain Magical Index
Aleister Crowley (voice) · 9 eps
Ninja Boy Rantaro
Hansuke Doi · 683 eps
The Misfit of Demon King Academy
Ahide Alobo Agatze (voice) · 6 eps
Ascendance of a Bookworm
Eustachius (voice) · 5 eps
Mobile Suit Gundam SEED
Rau Le Creuset (voice) · 56 eps
Mobile Suit Gundam SEED
Rey Za Burrel (voice) · 50 eps
Saiyuki
Konzen Douji (voice) · 50 eps
Saiyuki
Genjo Sanzo (voice) · 126 eps
Kaiju No. 8
Kaiju No. 11 (voice) · 1 eps
Yawara!
Matsuda / Eiji (voice) · 124 eps
Sekirei
Hiroto Minaka · 25 eps
Higurashi: When They Cry
Kyousuke Irie (voice) · 10 eps
Saint Seiya: The Hades Chapter
Milo (voice) · 10 eps
Demon Slayer: Kimetsu no Yaiba
Muzan Kibutsuji (voice) · 13 eps
MÄR: Märchen Awakens Romance
Danna Toramizu · 102 eps
PLUTO
Sahad (voice) · 1 eps
PLUTO
Pluto (voice) · 3 eps
Guilty Crown
Kurosu Ouma (voice) · 1 eps
TRIGUN
Legato Bluesummers (voice) · 7 eps
SAINT SEIYA: Knights of the Zodiac
Scorpio Milo (voice) · 1 eps
Higurashi: When They Cry - NEW
Kyousuke Irie (voice) · 39 eps
The Most Heretical Last Boss Queen: From Villainess to Savior
Clark Darwin (voice) · 12 eps
I Have a Crush at Work
Pastor (voice) · 1 eps
Nadia: The Secret of Blue Water
Fejto (voice) · 39 eps
Mobile Suit Gundam Wing
Duo Maxwell (voice) · 49 eps
Space Dandy
Public Prosecutor (voice) · 1 eps
Future GPX Cyber Formula
Jotaro Kaga · 64 eps
Glitter Force
Hiroshi Hoshizora · 48 eps
B'T X
Quatro (voice) · 14 eps
Samurai Champloo
Yamane (voice) · 26 eps
Black Jack
Tokio Umetani (voice) · 1 eps
The Ryuo's Work is Never Done!
Kiyotaki Kousuke (voice) · 12 eps
The Hakkenden: Legend of the Dog Warriors
Shino Inuzuka (voice) · 13 eps
Descending Stories
Eisuke Higuchi (voice) · 25 eps
Paranoia Agent
Mitsuhiro Maniwa (voice) · 13 eps
My-Hime
Reito Kanzaki (voice) · 26 eps
I Parry Everything
Carew (voice) · 12 eps
Saint Seiya: Soul of Gold
Scorpio Milo (voice) · 13 eps
Shurato
Shurato · 38 eps
Star☆Twinkle PreCure
Toto Hagoromo (voice) · 3 eps
HIGH CARD
Norman Kingstat (voice) · 12 eps
Cross Ange: Rondo of Angels and Dragons
Embryo (voice) · 25 eps
SANDA
Hifumi Ōshibu (voice) · 12 eps
Mashin Creator Wataru
Mr. Liar (voice) · 2 eps
Saint Seiya: Saintia Sho
Scorpio Milo (voice) · 10 eps
Kamen Rider Den-O: Imagin Anime
Momotaros (voice) · 34 eps
To Be Hero
Chinese Tohoku Muffler (voice) · 12 eps
Madö King Granzört
Grunwald · 41 eps
My-Otome
Rad (voice) · 26 eps
Blade of the Immortal
Souri (voice) · 2 eps
Good Bye, Dragon Life
Dio (voice) · 3 eps
Descendants of Darkness
Yutaka Watari (voice) · 13 eps
Sarazanmai
Yuri Kamome · 1 eps
Katanagatari
Umigame Maniwa (voice) · 12 eps
The Legend of Zorro
Don Diego de la Vega / Zorro · 52 eps
Magical Emi, the Magic Star
Customer A (voice) · 1 eps
The Irresponsible Captain Tylor
Ru Baraba Dom · 26 eps
My Ribdiculous Reincarnation
12 eps
SWORD GAI: The Animation
Miura Takuma · 12 eps
Onimusha
Kojiro Sasaki (voice) · 8 eps
Gingitsune: Messenger Fox of the Gods
Tatsuo Saeki (voice) · 12 eps
Bomberman B-Daman Bakugaiden
48 eps
PROJECT R.E.D.
GavarionTrigger / CosmoGavarion (voice) · 23 eps
Mirage of Blaze
Takaya Ohgi (voice) · 13 eps
Kamen Rider Den-O
Momotaros (voice) · 49 eps
Cookin' Idol Ai! Mai! Main!
柊修 · 25 eps
Outlaw Star
Fred (voice) · 26 eps
Please Save My Earth
Mikuro Yakushimaru (voice) · 6 eps
U Takes Terra
Chongyue (Voice) · 1 eps
Aoki Densetsu Shoot!
Akihiko Himuro (voice) · 58 eps
Hakugei: Legend of the Moby Dick
26 eps
Nightwalker: The Midnight Detective
Bait · 12 eps
Bastard!!
6 eps
Triple Combination: Transformers Go!
Gekisōmaru (voice) · 10 eps
Requiem from the Darkness
Momosuke Yamaoka (voice) · 13 eps
Armor Hunter Merowlink
PFC Cepres · 1 eps
Dash! Yonkuro
25 eps
Zillion
JJ · 31 eps
Hades Project Zeorymer
(voice) · 4 eps
The Laughing Salesman NEW
Shisao Kihara(Story2) · 12 eps
Shonen Onmyouji
26 eps
Hyper Police
Sakunoshin Chikura · 25 eps
The Irresponsible Captain Tylor OVA
Dom (voice) · 10 eps
Dogs: Bullets & Carnage
Ernst Rammsteiner · 4 eps
Spirit Warrior
Kujaku (voice) · 3 eps
Gin'yuu Mokushiroku Meine Liebe
Ludwig Herzog von Mohn nahe Liechtenstein (voice) · 26 eps
THE REFLECTION
Michael Holden (voice) · 12 eps
Pet Shop of Horrors
Count D (voice) · 4 eps
Bビーダマン爆外伝V
Kurobon · 50 eps
F
Gunma Akagi (voice) · 31 eps
Reign: The Conqueror
Alexander (voice) · 13 eps
Psychic Detective Yakumo
Isshin Saitō · 13 eps
Ai no Kusabi
Riki (voice) · 2 eps
Saiyuki Reload: Burial
Genjō Sanzō (voice) · 3 eps
Detonator Orgun
Knock · 3 eps
Goddamn
Hans Schultz · 2 eps
声優戦隊ボイストーム7
(voice) · 11 eps
Blazing Transfer Student
Noboru Takizawa (voice) · 2 eps
D-1 Devastator
谷田辺了 · 2 eps
Saiyuki Gaiden
Konzen Dōji (voice) · 4 eps
Dragon Century
Carmine · 2 eps
Izumo
Izumo (voice) · 2 eps
Udauda Yatteru Hima wa Nee!
(voice) · 2 eps
Harlock Saga - The Ring of the Nibelungs
6 eps
Wild 7
Dairoku Hiba · 2 eps
Akai Hayate
4 eps
Here Is Greenwood
Shinobu Tezuka (voice) · 6 eps
Evil Dragon War Chronicles
錦繍 (voice) · 2 eps
Nightsong of Splendor
4 eps
Angelique: Twin Collection
Luva (voice) · 8 eps
Nyūin Bokki Monogatari Ojiji ni!
2 eps
Princess Army: Wedding Combat
Yuuya Hashiba · 2 eps
Star Cat Full House
4 eps
Loving Angel Angelique
Luva
Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
Shurato · 6 eps
Momotaros' King of the Crimson Castle
Momotaros (voice) · 4 eps
Natsuki Crisis
Kyōtarō Himuro · 2 eps
Dragoon
Rain Keeves Fearudo (voice) · 3 eps
Darkness of the Sea, Shadow of the Moon
Katsuyuki Touma (voice) · 3 eps
Special Duty Combat Unit Shinesman
Shujin Seki (voice) · 2 eps
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
Momotaros (voice) · 3 eps