
Toshihiko Seki
Born June 11, 1962 · 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.
Notable Appearances
Movies

Demon Slayer: Kimetsu no Yaiba Infinity Castle

Castle in the Sky

Black Clover: Sword of the Wizard King

Detective Conan: Quarter of Silence

Road to Ninja: Naruto the Movie

Ocean Waves

My Hero Academia: World Heroes' Mission

Ninja Scroll

Hunter x Hunter: The Last Mission

Demon Slayer: Kimetsu no Yaiba - Sibling's Bond

Ranma 1/2 the Movie 2: Nihao My Concubine

Mazinger Z: Infinity

Kamen Rider Heisei Generations Forever

Kamen Rider Decade: All Riders vs. Dai-Shocker

X

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

Naruto OVA 12: The Day Naruto Became Hokage

Gundam Wing: The Endless Waltz

The Birth of Kitaro: The Mystery of GeGeGe

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

Kamen Rider Saber + Kikai Sentai Zenkaiger: Super Hero Chronicles

RahXephon: Pluralitas Concentio

Kamen Rider × Super Sentai: Ultra Super Hero Wars

Saiyuki: Requiem

Twilight of the Dark Master

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

Kamen Rider × Super Sentai: Super Hero Wars

Nintama Rantarō: Invincible Master of the Dokutake Ninja

Bio Hunter

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

Kamen Rider Den-O & Kiva: Climax Deka

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

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

Demon Slayer: Kimetsu no Yaiba - Asakusa Arc

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

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

Nadia: The Secret of Blue Water - The Motion Picture

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

Genocyber

Super Space Sheriff Gavan Infinity: Jo-Chaku Course

Higurashi: When They Cry - Outbreak

Farewell Kamen Rider Den-O: Final Countdown

Inferious Interplanetary War Chronicle - Condition Green

Zillion: Burning Night

The Weathering Continent

Legend of Crystania: The Motion Picture

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

Campus Special Investigator Hikaruon

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

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

Hades Project: Zeorymer Extinction

Ultraman Super Fighter Legend

Call Me Tonight

Hades Project: Zeorymer Separation

Balthus: Tia's Radiance

Love Wedge 2

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

The Samurai

Suikoden Demon Century

Angel Cop

TO-Y

10th Anniversary Project: Masked Rider LIVE & SHOW

Download: Devil's Circuit

Cinderella Express

Reign: The Conqueror Movie

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

Chō Uchū Keiji Gyaban Infiniti Taiyō ga Naita Hi

Kiss Me on the Apple of My Eye

Violinist of Hamelin: The Movie

Kamen Rider Den-O: Final Stage

Nadia: The Secret of Blue Water - Nautilus Story II

Maryuu Senki

Kamen Rider Den-O: Final Trilogy Special Edition

Marina the Manga Artist Goes to Camelot

Paranoia Agent: Part 1

Midoriyama High School, Koshien Edition (Movie)

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

Wild 7: Biker Knights

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

Love Wedge 1

Ryokunohara Labyrinth - Sparkling Phantom

Demon Hunter Makaryūdo

Saiyuki Interactive

Trusty Ginjiro

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

Hisashi Eguchi's Kotobuki Goro Show

Yawara! Go Get 'Em, Wimpy Kids!!

The End of the Century Darling

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

Kaze wo Nuke!

Animation Store Manager

Dorami-chan: A Blue Straw Hat

Moonlight Pierce

Yuukan Club

Baby Felix & Friends

Heart-Coloured Killer Ticket

Imagin Anime: Momotaros Forever!/Imajin Terminal Station

Momotaros' Summer Vacation

Scarlet Demon

Calico Cat Holmes and the Lord of the Haunted Castle

I'm Not an Angel!

Dragon Century

Goddamn

Oruorane the Cat Player

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

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

Momotaros' King of the Crimson Castle

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

Kamen Rider Decade: Final Stage

Handsome Girl

Yawara! Atlanta Special

TOKYO CITY Melhen 2

Milky Passion: Dougenzaka - The Castle of Love

The Irresponsible Captain Tylor: Tylor's War

Chimera: Angel of Death
TV Shows

Naruto

Hunter x Hunter

Naruto Shippūden

Ranma ½

Mobile Suit Gundam SEED

The Misfit of Demon King Academy

Rurouni Kenshin

A Certain Magical Index

Golden Kamuy

Kaiju No. 8

Saiyuki

MÄR: Märchen Awakens Romance

Ascendance of a Bookworm

Ranma1/2

Higurashi: When They Cry

Yawara!

Nadia: The Secret of Blue Water

Saint Seiya: The Hades Chapter

Guilty Crown

TRIGUN

Demon Slayer: Kimetsu no Yaiba

Future GPX Cyber Formula

Sekirei

Samurai Champloo

PROJECT R.E.D.

Mobile Suit Gundam Wing

Space Dandy

Higurashi: When They Cry - NEW

Star☆Twinkle PreCure

Glitter Force

PLUTO

SAINT SEIYA: Knights of the Zodiac

The Most Heretical Last Boss Queen: From Villainess to Savior

My-Hime

Descending Stories

HIGH CARD

The Irresponsible Captain Tylor

Aoki Densetsu Shoot!

Madö King Granzört

Paranoia Agent

The Hakkenden: Legend of the Dog Warriors

Shurato

The Legend of Zorro

The Ryuo's Work is Never Done!

Cross Ange: Rondo of Angels and Dragons

B'T X

I Have a Crush at Work

To Be Hero

Musashi no Ken

Katanagatari

Magical Emi, the Magic Star

Black Jack

Mashin Creator Wataru

Kamen Rider Den-O

Sarazanmai

Saint Seiya: Soul of Gold

Saint Seiya: Saintia Sho

Good Bye, Dragon Life

Zillion

Blade of the Immortal

I Parry Everything

My-Otome

Gin'yuu Mokushiroku Meine Liebe

Hyper Police

SANDA

Outlaw Star

My Ribdiculous Reincarnation

Triple Combination: Transformers Go!

Mirage of Blaze

The Laughing Salesman NEW

SWORD GAI: The Animation

Bastard!!

Requiem from the Darkness

Shonen Onmyouji

Loving Angel Angelique

Gingitsune: Messenger Fox of the Gods

Armor Hunter Merowlink

Please Save My Earth

Nightwalker: The Midnight Detective

F

Onimusha

Reign: The Conqueror

Bビーダマン爆外伝V

Dash! Yonkuro

Bomberman B-Daman Bakugaiden

Hakugei: Legend of the Moby Dick

Kamen Rider Den-O: Imagin Anime

Hades Project Zeorymer

Psychic Detective Yakumo

Descendants of Darkness

The Irresponsible Captain Tylor OVA

U Takes Terra

Ai no Kusabi

Here Is Greenwood

Cookin' Idol Ai! Mai! Main!

Detonator Orgun

Angelique: Twin Collection

THE REFLECTION

.hack//Liminality

Flaming Rugby Boy: Dodge Danpei

Spirit Warrior

Harlock Saga - The Ring of the Nibelungs

Dogs: Bullets & Carnage

Blazing Transfer Student

声優戦隊ボイストーム7

Legend of Heavenly Sphere Shurato: The Secret Feud of Creation

Pet Shop of Horrors

Evil Dragon War Chronicles

Saiyuki Reload: Burial

Akai Hayate

Udauda Yatteru Hima wa Nee!

Dragon Century

Special Duty Combat Unit Shinesman

Saiyuki Gaiden
















