
Toshihiko Seki
Acting
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.
Filmography

Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi
2026 · Movie

My Ribdiculous Reincarnation
2026 · Series

PROJECT R.E.D.
2026 · Series

Super Space Sheriff Gavan Infinity: Jo-Chaku Course
2026 · Movie

Super Space Sheriff Gavan Infinity
2026 · Series

SANDA
2025 · Series

Demon Slayer: Kimetsu no Yaiba Infinity Castle
2025 · Movie

U Takes Terra
2025 · Series

Mashin Creator Wataru
2025 · Series

I Have a Crush at Work
2025 · Series

Nintama Rantarō: Invincible Master of the Dokutake Ninja
2024 · Movie

Good Bye, Dragon Life
2024 · Series

Ranma1/2
2024 · Series

I Parry Everything
2024 · Series

Kaiju No. 8
2024 · Series

The Birth of Kitaro: The Mystery of GeGeGe
2023 · Movie

Onimusha
2023 · Series

PLUTO
2023 · Series

Rurouni Kenshin
2023 · Series

The Most Heretical Last Boss Queen: From Villainess to Savior
2023 · Series

Black Clover: Sword of the Wizard King
2023 · Movie

HIGH CARD
2023 · Series

Demon Slayer: Kimetsu no Yaiba - Asakusa Arc
2022 · Movie

Avataro Sentai Donbrothers meets Kamen Rider Den-O: Aim for it! The Don-O
2022 · Series

My Hero Academia: World Heroes' Mission
2021 · Movie

Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles
2021 · Movie

Higurashi: When They Cry - NEW
2020 · Series

Kamen Rider Den-O: The Birth of Pretty Den-O!
2020 · Movie

The Misfit of Demon King Academy
2020 · Series

Ascendance of a Bookworm
2019 · Series

SAINT SEIYA: Knights of the Zodiac
2019 · Series

Sarazanmai
2019 · Series

Demon Slayer: Kimetsu no Yaiba
2019 · Series

Demon Slayer: Kimetsu no Yaiba - Sibling's Bond
2019 · Movie

Star☆Twinkle PreCure
2019 · Series

Kamen Rider Heisei Generations Forever
2018 · Movie

Saint Seiya: Saintia Sho
2018 · Series

Golden Kamuy
2018 · Series

SWORD GAI: The Animation
2018 · Series

The Ryuo's Work is Never Done!
2018 · Series

Mazinger Z: Infinity
2017 · Movie

Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2017 · Movie

THE REFLECTION
2017 · Series

The Laughing Salesman NEW
2017 · Series

Kamen Rider × Super Sentai: Ultra Super Hero Wars
2017 · Movie

To Be Hero
2016 · Series

Mob Psycho 100
2016 · Series

Naruto OVA 12: The Day Naruto Became Hokage
2016 · Movie

Descending Stories
2016 · Series

Mobile Suit Gundam: The Origin II – Artesia's Sorrow
2015 · Movie

Saint Seiya: Soul of Gold
2015 · Series

Cross Ange: Rondo of Angels and Dragons
2014 · Series

Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
2014 · Movie

Space Dandy
2014 · Series

Hunter x Hunter: The Last Mission
2013 · Movie

Gingitsune: Messenger Fox of the Gods
2013 · Series

声優戦隊ボイストーム7
2013 · Series

Higurashi: When They Cry - Outbreak
2013 · Movie

Triple Combination: Transformers Go!
2013 · Series

Road to Ninja: Naruto the Movie
2012 · Movie

Kamen Rider × Super Sentai: Super Hero Wars
2012 · Movie

Glitter Force
2012 · Series

Guilty Crown
2011 · Series

Hunter x Hunter
2011 · Series

Detective Conan: Quarter of Silence
2011 · Movie

OOO, Den-O, All Riders: Let's Go Kamen Riders
2011 · Movie

Saiyuki Gaiden
2011 · Series

Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck!
2011 · Movie

OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
2011 · Movie

Psychic Detective Yakumo
2010 · Series

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

Super Kamen Rider Den-O Trilogy - Episode Yellow: Treasure de End Pirates
2010 · Movie

Super Kamen Rider Den-O Trilogy - Episode Blue: The Dispatched Imagin is Newtral
2010 · Movie

Super Kamen Rider Den-O Trilogy - Episode Red: Zero's Star Twinkle
2010 · Movie

Katanagatari
2010 · Series

Kamen Rider Decade: Final Stage
2010 · Movie

Kamen Rider × Kamen Rider W & Decade: Movie War 2010
2009 · Movie

10th Anniversary Project: Masked Rider LIVE & SHOW
2009 · Movie

Kamen Rider Decade: All Riders vs. Dai-Shocker
2009 · Movie

Dogs: Bullets & Carnage
2009 · Series

Super Kamen Rider Den-O & Decade NEO Generations: The Onigashima Warship
2009 · Movie

Cookin' Idol Ai! Mai! Main!
2009 · Series

Saraba Kamen Rider Den-O: Special Event -Saraba Imagin! At Climax in the Entire Japan!!-
2009 · Movie

Kamen Rider Kiva & Den-O: DenLiner, Into Space!
2009 · Movie

Imagin Anime: Momotaros Forever!/Imajin Terminal Station
2008 · Movie

A Certain Magical Index
2008 · Series

Farewell Kamen Rider Den-O: Final Countdown
2008 · Movie

Kamen Rider Kiva: King of the Castle in the Demon World
2008 · Movie

Momotaros' King of the Crimson Castle
2008 · Movie

Kamen Rider Den-O: Final Trilogy Special Edition
2008 · Movie

Momotaros' King of the Crimson Castle
2008 · Series

Blade of the Immortal
2008 · Series

Sekirei
2008 · Series

Kamen Rider Den-O: Imagin Anime
2008 · Series

Kamen Rider Den-O & Kiva: Climax Deka
2008 · Movie

Kamen Rider Den-O: Final Stage
2007 · Movie

Kamen Rider Den-O: Singing, Dancing, Great Training!!
2007 · Movie

Kamen Rider Den-O The Movie: I'm Born!
2007 · Movie

Momotaros' Summer Vacation
2007 · Movie

Crayon Shin-chan Midsummer Night: I Have Arrived! The Storm is Called Den-O vs. Shin-O! 60 Minute Special!!
2007 · Movie

Saiyuki Reload: Burial
2007 · Series

Naruto Shippūden
2007 · Series

Kamen Rider Den-O
2007 · Series

Shonen Onmyouji
2006 · Series

Loving Angel Angelique
2006 · Series

Higurashi: When They Cry
2006 · Series

My-Otome
2005 · Series

MÄR: Märchen Awakens Romance
2005 · Series

Gin'yuu Mokushiroku Meine Liebe
2004 · Series

Bleach
2004 · Series

My-Hime
2004 · Series

Samurai Champloo
2004 · Series

Paranoia Agent
2004 · Series

Paranoia Agent: Part 1
2004 · Movie

Requiem from the Darkness
2003 · Series

RahXephon: Pluralitas Concentio
2003 · Movie

Saint Seiya: The Hades Chapter
2002 · Series

Mobile Suit Gundam SEED
2002 · Series

Naruto
2002 · Series

Saiyuki Interactive
2002 · Movie

Animation Store Manager
2002 · Movie

.hack//Liminality
2002 · Series

Angelique: Twin Collection
2002 · Series

Mirage of Blaze
2002 · Series

Saiyuki: Requiem
2001 · Movie

Reign: The Conqueror Movie
2000 · Movie

Descendants of Darkness
2000 · Series

Saiyuki
2000 · Series

Baby Felix & Friends
2000 · Movie

Reign: The Conqueror
1999 · Series

Pet Shop of Horrors
1999 · Series

Bビーダマン爆外伝V
1999 · Series

Harlock Saga - The Ring of the Nibelungs
1999 · Series

Gundam Wing: The Endless Waltz
1998 · Movie

Nightwalker: The Midnight Detective
1998 · Series

TRIGUN
1998 · Series

Bomberman B-Daman Bakugaiden
1998 · Series

Outlaw Star
1998 · Series

Twilight of the Dark Master
1997 · Movie

Chimera: Angel of Death
1997 · Movie

Dragoon
1997 · Series

Hakugei: Legend of the Moby Dick
1997 · Series

Hyper Police
1997 · Series

Ultraman Super Fighter Legend
1996 · Movie

X
1996 · Movie

Yawara! Atlanta Special
1996 · Movie

Violinist of Hamelin: The Movie
1996 · Movie

B'T X
1996 · Series

The Legend of Zorro
1996 · Series

Special Duty Combat Unit Shinesman
1996 · Series

The End of the Century Darling
1996 · Movie

Bio Hunter
1995 · Movie

Legend of Crystania: The Motion Picture
1995 · Movie

Mobile Suit Gundam Wing
1995 · Series

Udauda Yatteru Hima wa Nee!
1995 · Series

Wild 7
1994 · Series

Wild 7: Biker Knights
1994 · Movie

The Irresponsible Captain Tylor OVA
1994 · Series

The Irresponsible Captain Tylor: Tylor's War
1994 · Movie

I'm Not an Angel!
1994 · Movie

Love Wedge 2
1994 · Movie

Dorami-chan: A Blue Straw Hat
1994 · Movie

Genocyber
1994 · Movie

Natsuki Crisis
1994 · Series

Please Save My Earth
1993 · Series

Black Jack
1993 · Series

Aoki Densetsu Shoot!
1993 · Series

Ocean Waves
1993 · Movie

Suikoden Demon Century
1993 · Movie

Kiss Me on the Apple of My Eye
1993 · Movie

Ninja Scroll
1993 · Movie

Ninja Boy Rantaro
1993 · Series

The Irresponsible Captain Tylor
1993 · Series

Download: Devil's Circuit
1992 · Movie

D-1 Devastator
1992 · Series

Oruorane the Cat Player
1992 · Movie

Ai no Kusabi
1992 · Series

Love Wedge 1
1992 · Movie

Bastard!!
1992 · Series

Ranma 1/2 the Movie 2: Nihao My Concubine
1992 · Movie

Princess Army: Wedding Combat
1992 · Series

Yawara! Go Get 'Em, Wimpy Kids!!
1992 · Movie

Calico Cat Holmes and the Lord of the Haunted Castle
1992 · Movie

The Weathering Continent
1992 · Movie

Moonlight Pierce
1991 · Movie

Nyūin Bokki Monogatari Ojiji ni!
1991 · Series

Inferious Interplanetary War Chronicle - Condition Green
1991 · Movie

Here Is Greenwood
1991 · Series

Ranma 1/2 the Movie: Big Trouble in Nekonron, China
1991 · Movie

Flaming Rugby Boy: Dodge Danpei
1991 · Series

Handsome Girl
1991 · Movie

Izumo
1991 · Series

Legend of Heavenly Sphere Shurato: The Secret Feud of Creation
1991 · Series

Detonator Orgun
1991 · Series

Yuukan Club
1991 · Movie

Nadia: The Secret of Blue Water - The Motion Picture
1991 · Movie

Nadia: The Secret of Blue Water - Nautilus Story II
1991 · Movie

Trusty Ginjiro
1991 · Movie

Blazing Transfer Student
1991 · Series

Akai Hayate
1991 · Series

Hisashi Eguchi's Kotobuki Goro Show
1991 · Movie

Future GPX Cyber Formula
1991 · Series

The Hakkenden: Legend of the Dog Warriors
1990 · Series

TOKYO CITY Melhen 2
1990 · Movie

Marina the Manga Artist Goes to Camelot
1990 · Movie

Midoriyama High School, Koshien Edition (Movie)
1990 · Movie

Milky Passion: Dougenzaka - The Castle of Love
1990 · Movie

Goddamn
1990 · Series

Goddamn
1990 · Movie

Nadia: The Secret of Blue Water
1990 · Series

Heart-Coloured Killer Ticket
1990 · Movie

Ryokunohara Labyrinth - Sparkling Phantom
1990 · Movie

Demon Hunter Makaryūdo
1989 · Movie

Yawara!
1989 · Series

Darkness of the Sea, Shadow of the Moon
1989 · Series

Dash! Yonkuro
1989 · Series

Angel Cop
1989 · Movie

Cinderella Express
1989 · Movie

Star Cat Full House
1989 · Series

Scarlet Demon
1989 · Movie

Ranma ½
1989 · Series

Madö King Granzört
1989 · Series

Shurato
1989 · Series

Nightsong of Splendor
1989 · Series

Hades Project: Zeorymer Extinction
1989 · Movie

Kaze wo Nuke!
1988 · Movie

Hades Project Zeorymer
1988 · Series

Hades Project: Zeorymer Separation
1988 · Movie

Armor Hunter Merowlink
1988 · Series

Dragon Century
1988 · Series

Dragon Century
1988 · Movie

Sunlight All Around! Ka - su - mi: You Were in My Dreams
1988 · Movie

Zillion: Burning Night
1988 · Movie

Spirit Warrior
1988 · Series

Balthus: Tia's Radiance
1988 · Movie

F
1988 · Series

The Samurai
1987 · Movie

TO-Y
1987 · Movie

Zillion
1987 · Series

Evil Dragon War Chronicles
1987 · Series

Maryuu Senki
1987 · Movie

Campus Special Investigator Hikaruon
1987 · Movie

Castle in the Sky
1986 · Movie

Call Me Tonight
1986 · Movie

Magical Emi, the Magic Star
1985 · Series

Musashi no Ken
1985 · Series

Kamen Rider
1971 · Series