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Toshihiko Seki (関 俊彦 Seki Toshihiko?, born June 11, 1962) is a popular veteran Japanese voice actor (seiyū) who was born in Tochigi. His bloodtype is A and he is a member of 81 Produce; apart from seiyū work, Seki sometimes does live action drama stage work. He is sometimes mistaken for another seiyu, Tomokazu Seki, sharing the same last name but are unrelated.


According to the Anime News Network as of early August 2007, Seki Toshihiko is one of the more prolific [1] male seiyū with 215 roles credited to his name. He is tied with seiyu Tomomichi Nishimura and Nobuo Tobita.

In June 2004, Toshihiko was honored by the readers of Animage Magazine in the 26th Annual Reader's Poll, where he was ranked the 9th favorite seiyū currently working in Japan, largely in recognition of his performance as Rau Le Creuset from Mobile Suit Gundam SEED.[2]

Toshihiko tends to mostly voice characters who are very serious or easily agitated, e.g. Ougi Takaya in Mirage of Blaze, Sanzo in Saiyuki, Duo Maxwell in Gundam Wing, Iruka Umino in Naruto, Kaien Shiba in Bleach and Momotaros in Kamen Rider Den-O. However, he has also played those who are composed and pleasant (Luva, Ru Baraba Dom). On some occasions, he has also played charming sociopaths:(Legato, Rau Le Creuset).


  • Toshihiko has worked alongside Soichiro Hoshi a few times whereby their characters have strong interactions: In Gundam SEED, Kira Yamato (Hoshi) was the one who killed Rau le Creuset (Seki), who had long regarded Kira as a main threat; in Saiyuki, Goku (Hoshi) was rescued by Sanzo (Seki), who often abuses him with a paper fan as well; in the drama CD version of D.N Angel, Soichiro voices Niwa Daisuke while Toshihiko voices his father, Kosuke. In Higurashi no Naku Koro Ni, Hoshi's character Keiichi Maebara confesses to a murder to the town doctor, Irie (Seki). In Dissidia -Final Fantasy- Warrior of Light (Seki) is one of the warriors of the goddess Cosmos, along with Butz Klauser (Hoshi), but their interactions are minimal.
  • Also, he has voiced characters alongside Ai Orikasa whereby they were close friends.
    • In Gundam Wing, with Toshihiko as Duo and Ai as Quatre.
    • In the Kami-kaze drama CDs, the two voiced a couple (with Toshihiko as Higa and Ai as Kaede).

Notable voice roles

Television animation


Theater animation

Video Games

  • Another Century's Episode 2 - Duo Maxwell
  • Aisle Lord - Rōru
  • Bleach: Heat the Soul 5 - Aaroniero Arruruerie (Kaien Shiba)
  • Castlevania: Order of Ecclesia - Albus
  • Future GPX Cyber Formula series - Bleed Kaga
  • Dissidia: Final Fantasy - Warrior of Light
  • La Pucelle: Tactics - Croix
  • Tales of Destiny 2 - Loni Dunamis
  • Naruto games - Iruka Umino
  • Super Robot Wars series - Duo Maxwell. Rau Le Creuset, Rey Za Burrel
  • Samurai Deeper Kyô- Benitora
  • Virtua Fighter 5- Goh Hinogami
  • Kamen Rider: Climax Heroes- Kamen Rider Den-O Sword Form
  • Kamen Rider: Climax Heroes W- Kamen Rider Den-O Sword Form

CD Dramas


  • Denji Sentai Megaranger - Chameleon Nejire
  • Kamen Rider Den-O, Kamen Rider Den-O: I'm Born!, Kamen Rider Den-O & Kiva: Climax Deka, Kamen Rider Kiva: King of the Castle in the Demon World, Saraba Kamen Rider Den-O: Final Countdown, Kamen Rider Decade (14-15, 18), Cho Kamen Rider Den-O & Decade Neo Generations: The Onigashima Warship, Kamen Rider Decade: All Riders vs. Great Shocker, Kamen Rider × Kamen Rider Double & Decade: Movie War 2010 - Momotaros/Kamen Rider Den-O Sword Form
  • Kamen Rider Decade: All Riders vs. Great Shocker - Kamen Rider Amazon
  • Ultraman: Super Fighter Legend - Ultra Seven and Ultraman Leo
  • Kamen Rider Kiva: King of the Castle in the Demon World - Penetentiary Officer Sanjō/Zebra Fangire (Cameo Role)

Dubbing Roles (Japanese)

  • Doctor Who - Tenth Doctor (David Tennant)
  • Gremlins - Billy Peltzer (Zack Galligan)
  • The Fly (1986 film) - Seth Brundle (Jeff Goldblum)
  • Batman Begins - Jonathan Crane/The Scarecrow (Cillian Murphy)

CD albums/Character Songs

  • Kicks on the Way
  • Double-Action
  • Climax Jump DENLINER FORM
  • Double-Action Climax Form
  • Climax Jump Sword Form
  • Cho Climax Jump (超 Climax Jump Chō Kuraimakkusu Janpu?)


Inu-Yasha in the Shonen Sunday commercial for Inu-Yasha


  1. Anime News Network
  2. "Animage Awards - Anime News Network". May 12, 2004. Retrieved 2007-03-10. 

External links

ar:توشيهيكو سكي it:Toshihiko Seki ms:Toshihiko Seki ru:Сэки, Тосихико th:โทชิฮิโกะ เซกิ zh:關俊彥