Toshihiko Seki

Actor · Born June 11, 1962 · Sendai, Japon

IMDb

Highest rated as cast or director

Black Clover: Sword of the Wizard King

2023

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.

Acted in 247

2020s

2026
Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
Cosmo Gavarion System Voice / Gavarion Trigger System Voice
My Ribdiculous Reincarnation
TV · 1 Season · Comedy · Animation
65
Super Space Sheriff Gavan Infinity: Jo-Chaku Course
Gavarion Trigger System Voice (voice)
PROJECT R.E.D.
GavarionTrigger / CosmoGavarion (voice) · 23 episodes
Super Space Sheriff Gavan Infinity
Cosmo Gavarion System / Gavarion Trigger System (voice), Supreme Chancellor · 23 episodes
2025
SANDA
Hifumi Ōshibu (voice) · 12 episodes
71
Demon Slayer: Kimetsu no Yaiba Infinity Castle
Muzan Kibutsuji (voice)
84
U Takes Terra
Chongyue (Voice) · 1 episode
Mashin Creator Wataru
Mr. Liar (voice) · 2 episodes
I Have a Crush at Work
Pastor (voice) · 1 episode
72
2024
Nintama Rantarō: Invincible Master of the Dokutake Ninja
Hansuke Doi (voice)
Good Bye, Dragon Life
Dio (voice) · 3 episodes
65
Ranma1/2
Mousse (voice) · 4 episodes
80
I Parry Everything
Carew (voice) · 12 episodes
74
Kaiju No. 8
Kaiju No. 11 (voice) · 1 episode
83
2023
The Birth of Kitaro: The Mystery of GeGeGe
Kitarou's Father (voice)
73
Onimusha
Kojiro Sasaki (voice) · 8 episodes
70
PLUTO
Sahad (voice), Pluto (voice) · 1 episode
80
The Most Heretical Last Boss Queen: From Villainess to Savior
Clark Darwin (voice) · 12 episodes
70
Rurouni Kenshin
Narration (voice) · 21 episodes
80
Black Clover: Sword of the Wizard King
Conrad Leto (voice)
82
HIGH CARD
Norman Kingstat (voice) · 12 episodes
67
2022
Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
Muzan Kibutsuji (voice)
Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
Momotaros (voice) · 3 episodes
2021
My Hero Academia: World Heroes' Mission
Eddie Soul (voice)
71
Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
Momotaros (voice) / Kamen Rider Den-O (voice)
65
2020
Higurashi: When They Cry - NEW
Kyousuke Irie (voice) · 39 episodes
70
Kamen Rider Den-O: The Birth of Pretty Den-O!
Momotaros (voice)
The Misfit of Demon King Academy
Ahide Alobo Agatze (voice) · 6 episodes
74

2010s

2019
Ascendance of a Bookworm
Eustachius (voice) · 7 episodes
79
SAINT SEIYA: Knights of the Zodiac
Scorpio Milo (voice) · 1 episode
55
Sarazanmai
Yuri Kamome · 1 episode
69
Demon Slayer: Kimetsu no Yaiba
Muzan Kibutsuji (voice) · 13 episodes
85
Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
Muzan Kibutsuji (voice)
83
Star☆Twinkle PreCure
Toto Hagoromo (voice) · 3 episodes
2018
Kamen Rider Heisei Generations Forever
Momotaros / Kamen Rider Den-O Sword Form (voice)
68
Saint Seiya: Saintia Sho
Scorpio Milo (voice) · 10 episodes
60
Golden Kamuy
Kazuo Henmi (voice) · 62 episodes
80
SWORD GAI: The Animation
Miura Takuma · 12 episodes
60
The Ryuo's Work is Never Done!
Kiyotaki Kousuke (voice) · 12 episodes
64
2017
Mazinger Z: Infinity
Tetsuya Tsurugi (voice)
67
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
Momotaros
THE REFLECTION
Michael Holden (voice) · 12 episodes
The Laughing Salesman NEW
Shisao Kihara(Story2) · 12 episodes
Kamen Rider × Super Sentai: Ultra Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
2016
To Be Hero
Chinese Tohoku Muffler (voice) · 12 episodes
66
Mob Psycho 100
Morizo Ebihara (voice), Musashi Goda (voice) · 1 episode
85
Naruto OVA 12: The Day Naruto Became Hokage
Iruka Umino (voice)
80
Descending Stories
Eisuke Higuchi (voice) · 25 episodes
82
2015
Mobile Suit Gundam: The Origin II – Artesia's Sorrow
Char Aznable (voice)
Saint Seiya: Soul of Gold
Scorpio Milo (voice) · 13 episodes
77
2014
Cross Ange: Rondo of Angels and Dragons
Embryo (voice) · 25 episodes
73
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
Kamen Rider Den-O Sword Form (voice)
62
Space Dandy
Public Prosecutor (voice) · 1 episode
79
2013
Hunter x Hunter: The Last Mission
Wing (voice)
66
Gingitsune: Messenger Fox of the Gods
Tatsuo Saeki (voice) · 12 episodes
69
声優戦隊ボイストーム7
(voice) · 11 episodes
Higurashi: When They Cry - Outbreak
Kyousuke Irie (voice)
Triple Combination: Transformers Go!
Gekisōmaru (voice) · 10 episodes
2012
Road to Ninja: Naruto the Movie
Iruka Umino (voice)
75
Kamen Rider × Super Sentai: Super Hero Wars
Momotaros - Kamen Rider Den-O Sword Form (voice)
70
Glitter Force
Hiroshi Hoshizora · 48 episodes
68
2011
Guilty Crown
Kurosu Ouma (voice) · 1 episode
70
Hunter x Hunter
Wing (voice) · 10 episodes
89
Detective Conan: Quarter of Silence
Shogo Hikawa (voice)
67
OOO, Den-O, All Riders: Let's Go Kamen Riders
Momotaros / Kamen Rider Den-O Sword Form (voice)
64
Saiyuki Gaiden
Konzen Dōji (voice) · 4 episodes
Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
Hansuke Doi (voice)
OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
Momotaros (voice)
2010
Psychic Detective Yakumo
Isshin Saitō · 13 episodes
67
Kamen Rider × Kamen Rider × Kamen Rider The Movie Cho-Den-O Trilogy Movie Released Memorial Special Stage: Imagin Super Climax Tour 2010
Movie
Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
Momotaros (voice)
Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
Momotaros (voice)
Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
Momotaros (voice)
Katanagatari
Umigame Maniwa (voice) · 12 episodes
77
Kamen Rider Decade: Final Stage
Momotaros / Kamen Rider Den-O (Sword Form)

2000s

2009
Kamen Rider × Kamen Rider W & Decade: Movie War 2010
Kamen Rider Den-O (voice)
66
10th Anniversary Project: Masked Rider LIVE & SHOW
Kamen Rider Den-O Sword Form (voice)
Kamen Rider Decade: All Riders vs. Dai-Shocker
Momotaros / Kamen Rider Den-O (voice)
67
Dogs: Bullets & Carnage
Ernst Rammsteiner · 4 episodes
Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
Momotaros (voice)
Cookin' Idol Ai! Mai! Main!
柊修 · 25 episodes
Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
Momotaros (voice)
Kamen Rider Kiva & Den-O: DenLiner, Into Space!
Momotaros (voice)
2008
Imagin Anime: Momotaros Forever!/Imajin Terminal Station
Momotaros (voice)
A Certain Magical Index
Aleister Crowley (voice) · 9 episodes
69
Farewell Kamen Rider Den-O: Final Countdown
Momotaros (voice)
Kamen Rider Kiva: King of the Castle in the Demon World
Penetentiary Officer Sanjo
59
Momotaros' King of the Crimson Castle
Momotaros (voice)
Kamen Rider Den-O: Final Trilogy Special Edition
Momotaros (voice)
Momotaros' King of the Crimson Castle
Momotaros (voice) · 4 episodes
Blade of the Immortal
Souri (voice) · 2 episodes
65
Sekirei
Hiroto Minaka · 25 episodes
73
Kamen Rider Den-O: Imagin Anime
Momotaros (voice) · 34 episodes
Kamen Rider Den-O & Kiva: Climax Deka
Momotaros (voice)
2007
Kamen Rider Den-O: Final Stage
Momotaros
Kamen Rider Den-O: Singing, Dancing, Great Training!!
Momotaros (voice)
Kamen Rider Den-O The Movie: I'm Born!
Momotaros (voice)
67
Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
Momotaros (voice)
Momotaros' Summer Vacation
Momotaros (voice)
Saiyuki Reload: Burial
Genjō Sanzō (voice) · 3 episodes
Naruto Shippūden
Iruka Umino (voice) · 320 episodes
86
Kamen Rider Den-O
Momotaros (voice) · 49 episodes
2006
Shonen Onmyouji
TV
Loving Angel Angelique
Luva
Higurashi: When They Cry
Kyousuke Irie (voice) · 10 episodes
78
2005
My-Otome
Rad (voice) · 26 episodes
73
MÄR: Märchen Awakens Romance
Danna Toramizu · 102 episodes
73
2004
Gin'yuu Mokushiroku Meine Liebe
Ludwig Herzog von Mohn nahe Liechtenstein (voice) · 26 episodes
Bleach
Aaroniero Arruruerie (voice)
83
My-Hime
Reito Kanzaki (voice) · 26 episodes
71
Samurai Champloo
Yamane (voice) · 26 episodes
84
Paranoia Agent
Mitsuhiro Maniwa (voice) · 13 episodes
79
Paranoia Agent: Part 1
まにわみつひろ
2003
Requiem from the Darkness
Momosuke Yamaoka (voice) · 13 episodes
67
RahXephon: Pluralitas Concentio
Makoto Isshiki (voice)
60
2002
Saint Seiya: The Hades Chapter
Milo (voice) · 10 episodes
84
Mobile Suit Gundam SEED
Rau Le Creuset (voice), Rey Za Burrel (voice) · 56 episodes
77
Naruto
Iruka Umino (voice) · 220 episodes
84
Saiyuki Interactive
Movie
Animation Store Manager
Ryuu Raiba (voice)
.hack//Liminality
TV
Angelique: Twin Collection
Luva (voice) · 8 episodes
Mirage of Blaze
Takaya Ohgi (voice) · 13 episodes
67
2001
Saiyuki: Requiem
Genjo Sanzo (voice)
67
2000
Reign: The Conqueror Movie
Alexander
Descendants of Darkness
Yutaka Watari (voice) · 13 episodes
69
Saiyuki
Genjo Sanzo (voice), Konzen Douji (voice) · 126 episodes
69
Baby Felix & Friends
Felix The Cat

1990s

1999
Reign: The Conqueror
Alexander (voice) · 13 episodes
Pet Shop of Horrors
Count D (voice) · 4 episodes
Bビーダマン爆外伝V
Kurobon · 50 episodes
Harlock Saga - The Ring of the Nibelungs
TV
1998
Gundam Wing: The Endless Waltz
Duo Maxwell (voice)
76
Nightwalker: The Midnight Detective
Bait · 12 episodes
TRIGUN
Legato Bluesummers (voice) · 7 episodes
82
Bomberman B-Daman Bakugaiden
TV
Outlaw Star
Fred (voice) · 26 episodes
1997
Twilight of the Dark Master
Shijo Tsunami (voice)
54
Chimera: Angel of Death
Ron (voice)
Dragoon
Rain Keeves Fearudo (voice) · 3 episodes
Hakugei: Legend of the Moby Dick
TV
Hyper Police
Sakunoshin Chikura · 25 episodes
1996
Ultraman Super Fighter Legend
Ultraseven / Ultraman Leo (voice)
X
Shougo
56
Yawara! Atlanta Special
Movie
Violinist of Hamelin: The Movie
Raiel (voice)
B'T X
Quatro (voice) · 14 episodes
73
The Legend of Zorro
Don Diego de la Vega / Zorro (voice) · 52 episodes
75
Special Duty Combat Unit Shinesman
Shujin Seki (voice) · 2 episodes
The End of the Century Darling
Todorokki Kouhei (voice)
1995
Bio Hunter
Komada
61
Legend of Crystania: The Motion Picture
Nasser (voice)
Mobile Suit Gundam Wing
Duo Maxwell (voice) · 49 episodes
80
Udauda Yatteru Hima wa Nee!
(voice) · 2 episodes
1994
Wild 7: Biker Knights
Dairoku Hiba
Wild 7
Dairoku Hiba · 2 episodes
The Irresponsible Captain Tylor: Tylor's War
Ru Baraba Dom (voice)
The Irresponsible Captain Tylor OVA
Dom (voice) · 10 episodes
I'm Not an Angel!
Bunta Kouno (voice)
Love Wedge 2
Riki (voice)
Dorami-chan: A Blue Straw Hat
Crow (voice)
Genocyber
Sakomizu (voice)
59
Natsuki Crisis
Kyōtarō Himuro · 2 episodes
1993
Please Save My Earth
Mikuro Yakushimaru (voice) · 6 episodes
Black Jack
Tokio Umetani (voice) · 1 episode
72
Aoki Densetsu Shoot!
Akihiko Himuro (voice) · 58 episodes
73
Ocean Waves
Yutaka Matsuno (voice)
72
Suikoden Demon Century
Takateru Suga (voice)
Kiss Me on the Apple of My Eye
Naoto (voice)
Ninja Scroll
Yurimaru (voice)
81
Ninja Boy Rantaro
Hansuke Doi · 702 episodes
69
The Irresponsible Captain Tylor
Ru Baraba Dom · 26 episodes
77
1992
Download: Devil's Circuit
Sid (voice)
D-1 Devastator
谷田辺了 · 2 episodes
Oruorane the Cat Player
The Cellist
Love Wedge 1
Riki (voice)
Ai no Kusabi
Riki (voice) · 2 episodes
68
Bastard!!
TV · 1 Season · Animation · Comedy
64
Ranma 1/2 the Movie 2: Nihao My Concubine
Mousse (voice)
74
Yawara! Go Get 'Em, Wimpy Kids!!
(voice)
Princess Army: Wedding Combat
Yuuya Hashiba · 2 episodes
Calico Cat Holmes and the Lord of the Haunted Castle
Yoshitaro Katayama (voice)
The Weathering Continent
Tieh (voice)
1991
Moonlight Pierce
Hiroshi Takama (voice)
Nyūin Bokki Monogatari Ojiji ni!
TV · 1 Season
Inferious Interplanetary War Chronicle - Condition Green
Soo Laform (voice)
Here Is Greenwood
Shinobu Tezuka (voice) · 6 episodes
Ranma 1/2 the Movie: Big Trouble in Nekonron, China
Mousse (voice)
71
Flaming Rugby Boy: Dodge Danpei
Nikaidou · 47 episodes
Handsome Girl
Ichiya Kumagai (voice)
Izumo
Izumo (voice) · 2 episodes
Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
Shurato · 6 episodes
Detonator Orgun
Knock · 3 episodes
Yuukan Club
Movie
Nadia: The Secret of Blue Water - The Motion Picture
Falt (voice)
Nadia: The Secret of Blue Water - Nautilus Story II
Fate (voice)
Trusty Ginjiro
Hideki Mitsui (voice)
Hisashi Eguchi's Kotobuki Goro Show
Piston Akagi (voice)
Blazing Transfer Student
Noboru Takizawa (voice) · 2 episodes
Akai Hayate
TV
Future GPX Cyber Formula
Jotaro Kaga · 64 episodes
77
1990
The Hakkenden: Legend of the Dog Warriors
Shino Inuzuka (voice) · 13 episodes
TOKYO CITY Melhen 2
Movie
Marina the Manga Artist Goes to Camelot
Bijomaru Shizuka (voice)
Midoriyama High School, Koshien Edition (Movie)
Movie
Milky Passion: Dougenzaka - The Castle of Love
Ootsuki (voice)
Goddamn
Hans Schultz
Goddamn
Hans Schultz · 2 episodes
Nadia: The Secret of Blue Water
페이트 · 39 episodes
76
Heart-Coloured Killer Ticket
Chuta Misora (voice)
Ryokunohara Labyrinth - Sparkling Phantom
Hiroki Imashi