Toshihiko Seki
関俊彦
Holds a 2nd Dan rank in Kendo. A veteran Japanese voice actor who has played characters in anime, drama CDs and video games. Apart from voice work, Toshihiko Seki sometimes does live-action drama stage work and is a member of 81 Produce.
Non-anime roles:
• Dottore (Genshin Impact)
• Chongyue (Arknights)
Non-anime roles:
• Dottore (Genshin Impact)
• Chongyue (Arknights)
Demon Slayer: Kimetsu no Yaiba
TV, 2019
Muzan Kibutsuji
Supporting
Naruto
TV, 2002
Iruka Umino
Supporting
Naruto: Shippuden
TV, 2007
Iruka Umino
Supporting
Mob Psycho 100
TV, 2016
Musashi Gouda
Supporting
KILL la KILL
TV, 2013
Senketsu
Main
Muzan Kibutsuji
Supporting
Mob Psycho 100 II
TV, 2019
Musashi Gouda
Supporting
Guilty Crown
TV, 2011
Kurosu Ouma
Supporting
Muzan Kibutsuji
Supporting
Boruto: Naruto Next Generations
TV, 2017
Iruka Umino
Supporting
Mob Psycho 100 III
TV, 2022
Musashi Gouda
Supporting
When They Cry
TV, 2006
Kyousuke Irie
Supporting
Katanagatari
TV, 2010
Umigame Maniwa
Supporting
When They Cry: Kai
TV, 2007
Kyousuke Irie
Supporting
Plunderer
TV, 2020
Schmelman Bach
Supporting
Paranoia Agent
TV, 2004
Mitsuhiro Maniwa
Main
Blood Blockade Battlefront & Beyond
TV, 2017
Dr. Gamimodzu
Supporting
Golden Kamuy
TV, 2018
Henmi Kazuo
Supporting
Sekirei
TV, 2008
Hiroto Minaka
Supporting
Demon Slayer: Kimetsu no Yaiba Infinity Castle
MOVIE, 2025
Muzan Kibutsuji
Supporting
Naruto: Shippuuden Movie 6: Road to Ninja
MOVIE, 2012
Iruka Umino
Supporting
Salinger
Supporting
Sentenced to Be a Hero
TV, 2026
Kafzen Dakrom
Supporting
Higurashi: When They Cry – Gou
TV, 2020
Kyousuke Irie
Supporting
Black Clover: Sword of the Wizard King
MOVIE, 2023
Conrad Leto
Main
Sekirei: Pure Engagement
TV, 2010
Hiroto Minaka
Supporting
Vampire Hunter D: Bloodlust
MOVIE, 2000
Grove Marcus
Supporting
Uzumaki: Spiral into Horror
TV, 2024
Dr. Kawamoto
Supporting
Randolph
Supporting
Embryo
Supporting
I Parry Everything
TV, 2024
Carew
Supporting
Ahide Alobo Agatse
Supporting
Kill la Kill Specials
SPECIAL, 2014
Senketsu
Supporting
The Ryuo's Work is Never Done!
TV, 2018
Kousuke Kiyotaki
Supporting
When They Cry: Rei
OVA, 2009
Kyousuke Irie
Supporting
Eisuke Higuchi
Supporting
Hunter x Hunter Movie 2: The Last Mission
MOVIE, 2013
Wing
Supporting
Mobile Suit Gundam SEED
TV, 2002
Rau Creuset
Supporting
Mobile Suit Gundam SEED
TV, 2002
George Allster
Supporting
Mobile Suit Gundam Wing
TV, 1995
Duo Maxwell
Main
Outlaw Star
TV, 1998
Ark Manaf
Supporting
Outlaw Star
TV, 1998
Fred Luo
Supporting
Ninja Scroll
MOVIE, 1993
Yurimaru
Supporting
The Ocean Waves
SPECIAL, 1993
Yutaka Matsuno
Main
High Card
TV, 2023
Norman Kingstadt
Supporting
Aleister Crowley
Supporting
Psychic Detective Yakumo
TV, 2010
Isshin Saitou
Supporting
Clark Darwin
Supporting
RahXephon
TV, 2002
Makoto Isshiki
Supporting
Higurashi: When They Cry – SOTSU
TV, 2021
Kyousuke Irie
Supporting
Shinya Itou
Supporting
My-Hime
TV, 2004
Reito Kanzaki
Supporting
Musashi Gouda
Supporting
Mobile Suit Gundam SEED Destiny
TV, 2004
Rey Za Burrel
Main
Sage Pope
Supporting
Sanda
TV, 2025
Hifumi Ooshibu
Supporting
Nagasarete Airantou
TV, 2007
Beniyasha
Supporting
Rave Master
TV, 2001
Shuda
Supporting
One Piece Film: Strong World Episode 0
OVA, 2010
Duval
Supporting
Higurashi no Naku Koro ni Kira
OVA, 2011
Kyousuke Irie
Supporting
Justus
Supporting
Wiliahsfim
Supporting
Ranma ½ (2024) 2nd Season
TV, 2025
Mousse
Supporting
Naruto OVA3: Hidden Leaf Village Grand Sports Festival
SPECIAL, 2004
Iruka Umino
Supporting
Sword Gai The Animation
ONA, 2018
Takuma Miura
Supporting
Pet Shop of Horrors
TV, 1999
Count D
Main
Higurashi no Naku Koro ni Kaku: Outbreak
OVA, 2013
Kyousuke Irie
Supporting
Blade of the Immortal
TV, 2008
Sori
Supporting
Blue Submarine No. 6
OVA, 1998
Katsuma Nonaka
Supporting
Mobile Suit Gundam Wing: Endless Waltz
MOVIE, 1998
Duo Maxwell
Main
Caine
Supporting
Gunslinger Girl: Il Teatrino
TV, 2008
Nino
Supporting
Dogs: Bullets & Carnage
OVA, 2009
Ernst Rammsteiner
Supporting
Build Divide: Code Black
TV, 2021
Higuma Mario
Supporting
Tatsuo Saeki
Supporting
Samurai Deeper Kyo
TV, 2002
Hidetada Tokugawa
Main
Shonen Onmyoji
TV, 2006
Yukinari Fujiwara no
Supporting
Saiyuki
TV, 2000
Sanzou Genjou
Main
Saiyuki
TV, 2000
Konzen Douji
Supporting
The Irresponsible Captain Tylor
TV, 1993
Ru Baraba Dom
Supporting
High Card Season 2
TV, 2024
Norman Kingstadt
Supporting
Mobile Suit Gundam Wing: Endless Waltz
OVA, 1997
Duo Maxwell
Main
Symphogear GX
TV, 2015
Akira Tachibana
Supporting
Ascendance of a Bookworm: Side Story
OVA, 2020
Justus
Main
Ninja Scroll: The Series
TV, 2003
Aizen
Supporting
Ace Attorney Season 2
TV, 2018
Aiga Hoshiidake
Supporting
Tu Bian Ying Xiong Leaf
ONA, 2018
Hanzou Hattori
Supporting
Tales of Saiunkoku
TV, 2007
Riou Hyou
Supporting
Requiem from the Darkness
TV, 2003
Momosuke Yamaoka
Main
Saiyuki Reload Blast
TV, 2017
Sanzou Genjou
Main
One Piece Log: Fish-Man Island Saga
TV, 2024
Duval
Supporting
Mob Psycho Mini
SPECIAL, 2016
Musashi Gouda
Supporting
Final Fantasy: Unlimited
TV, 2001
Cid
Supporting
Ranma ½ OVA
OVA, 1993
Mousse
Supporting
Saiyuki Reload
TV, 2003
Sanzou Genjou
Main
Tanaka-san
Supporting
Sword Gai The Animation Part II
ONA, 2018
Takuma Miura
Supporting
.hack//G.U. Trilogy
MOVIE, 2008
Genius
Supporting
TRILLION GAME
TV, 2024
Tooru Hebijima
Supporting
City Hunter 2
TV, 1988
Kazuya
Supporting
Golden Kamuy 2nd Season OVA
OVA, 2019
Henmi Kazuo
Supporting
Ginga Eiyuu Densetsu Gaiden
OVA, 1998
Hugenberch
Supporting
Mirage of Blaze
TV, 2002
Takaya Ougi
Main
Saiyuki Gunlock
TV, 2004
Sanzou Genjou
Main
Ranma ½: Big Trouble in Nekonron, China
MOVIE, 1991
Mousse
Supporting
Nightwalker: The Midnight Detective
TV, 1998
Bait
Supporting
Ranma ½: Nihao My Concubine
MOVIE, 1992
Mousse
Supporting
Build Divide: Code White
TV, 2022
Higuma Mario
Supporting
Touhai: Ura Rate Mahjong Touhai Roku
TV, 2024
Hideharu Seki
Supporting
Ranma ½ Super
OVA, 1995
Mousse
Supporting
Ranma ½: Yomigaeru Kioku
OVA, 1994
Mousse
Supporting
The Laughing Salesman
TV, 2017
Shisao Kihara
Supporting
Ranma ½: Team Ranma vs. The Legendary Phoenix
MOVIE, 1994
Mousse
Supporting
Bio Hunter
OVA, 1995
Komada
Main
RahXephon: Pluralitas Concentio
MOVIE, 2003
Makoto Isshiki
Supporting
Ranma ½: Akumu! Shunmin Kou
OVA, 2008
Mousse
Supporting
Pretty Rhythm: Rainbow Live
TV, 2013
Hijiri Himuro
Supporting
Saiyuuki Reload: Zeroin
TV, 2022
Sanzou Genjou
Main
Twilight Of The Dark Master
OVA, 1998
Tsunami Shijo
Main
Call Me Tonight
OVA, 1986
Hayata
Supporting
Souther
Supporting
Here is Greenwood
OVA, 1991
Shinobu Tezuka
Main
Irresponsible Captain Tylor OVA
OVA, 1994
Ru Baraba Dom
Supporting
Saiyuki: Requiem
MOVIE, 2001
Sanzou Genjou
Main
Kitarou Tanjou: Gegege no Nazo
MOVIE, 2023
Kitarou no Chichi
Main
Mazinger Z Movie: Infinity
MOVIE, 2018
Tetsuya Tsurugi
Supporting
Reign: The Conqueror
TV, 1999
Alexander
Main
Laughing Salesman
TV, 1989
Makkura Osaki
Supporting
Phantom Quest Corp.
OVA, 1994
Mukyou
Supporting
Detonator Orgun
OVA, 1991
Knock
Supporting
Golden Travelogue Theater
ONA, 2018
Henmi Kazuo
Supporting
Makaryuudo Demon Hunter
OVA, 1989
Sho Kurogane
Main
Special Duty Combat Unit Shinesman
OVA, 1996
Akihito Seki
Supporting
Spirit Warrior
OVA, 1988
Kujaku
Main
Dragoon
OVA, 1997
Rain Keeves Fearudo
Main
Cinderella Express
OVA, 1989