Takehito Koyasu, Shigeru Aoba's Seiyu

Takehito Koyasu (子安 武人[?], "Koyasu Takehito", born May 5, 1967 in Yokohama, Kanagawa, Japan) is a Japanese voice actor.

Koyasu is part of the voice actor quartet Weiß consisting of Weiß Kreuz voice castmates Shinichiro Miki, Tomokazu Seki, and Hiro Yūki. He used to work for Production Baobab but is now the head of T's Factory, a voice actor company he founded in 1998.

Koyasu is known for his deep, smooth voice, which often lands him in roles that are either villains or lonely bishōnen. Recently, though (as in the cases of Mitsurugi Hanagata from Saber Marionette J, Ryo Kuroyanagi from Yakitate!! Japan, Bobobo-bo Bo-bobo, and Kei Itoshiki from Zoku Sayonara Zetsubo Sensei) he has been voicing more and more lively/humorous characters. According to Hisaya Nakajo, the manga artist of the series Hana-Kimi, the character of Masao Himejima was designed with Koyasu's voice in mind; the voice actor ended up voicing this character in the series' drama CDs.

A selection of other roles played by Takehito Koyasu

  • Bobobo-bo Bo-bobo as Bobobo-bo Bo-bobo
  • Bleach as Pesche Guatiche, Hexapodus
  • Captain Tsubasa: Road to 2002 as Adult Kojiro Hyuga
  • Excel Saga as Il Palazzo
  • Fullmetal Alchemist as Lujon
  • Gintama as Takasugi Shinsuke
  • Mobile Suit Gundam Wing as Milliardo Peacecraft/Zechs Merquise
  • One Piece as Admiral Aokiji
  • Sgt. Frog as Sergeant Major Kururu
  • Weiß Kreuz as Ran "Aya" Fujimiy


  • Koyasu is the creator of the Weiß series, and has authored the manga Weiß Side B. In creating Weiß Kreuz, Koyasu was inspired by an old Japanese series called Sure Death.
  • Koyasu often voices under the pseudonym Hayato Jumonji, especially in H anime.
  • He also narrates promotional videos and pre-flight safety videos for StarFlyer.
  • In 18 September 2009, he created velvet under-world series which is the first drama CD of the series, velvet underworld fragment story #0 “the fool”. In the following month, velvet underworld fragment story #0 “the wheel of fortune” had released as the second drama CD of the series. He called and made the crew of the drama himself. This is said to be another pick of his career after Weiß.