Overview

Takehito Koyasu (子安 武人), born May 5, 1967, is a Japanese seiyuu (voice actor) and singer with a long career in animation, video games, dubbing and audio dramas. He is widely recognized for his expressive range and frequent casting in memorable supporting and villainous roles. In certain adult dubbing projects he adopts the pseudonym Hayato Jumonji.

Career and notable roles

Koyasu rose to prominence through a steady stream of work from the late 1980s onward. He has voiced characters across many high-profile franchises and media formats. Two of his most famous performances are as the long-running antagonist Dio Brando in JoJo's Bizarre Adventure, and as Shigeru Aoba in Neon Genesis Evangelion. These parts illustrate his ability to create striking, often larger-than-life characterizations.

  • Animation and series: leading and supporting roles across genres.
  • Video games: characters ranging from heroic to villainous types.
  • Dubbing and audio dramas: narration, foreign media dubbing, and drama CDs.

Voice, style and range

Koyasu's voice is often noted for its clarity, emotional expressiveness and capacity for dramatic shifts in tone. He can portray charismatic antagonists, sly schemers, flamboyant personalities and quieter supporting characters. Fans and colleagues have praised his ability to give distinct identities to recurring roles while maintaining a signature presence.

Other work and pseudonym

Beyond acting, Koyasu has released music as a singer and taken part in character songs and stage events tied to his roles. For work in adult-oriented dubbing he sometimes uses the alias Hayato Jumonji, a common practice among Japanese voice actors who separate family-friendly credits from explicit material. His career also includes radio programs, live events and collaborations within the voice-acting community.

Importance and legacy

Koyasu's career spans decades and multiple generations of anime productions, making him a recognizable figure in contemporary Japanese popular culture. He is often cited as an example of a versatile seiyuu who balances mainstream franchise work with niche projects, and his performances remain influential among fans of series like JoJo's Bizarre Adventure and Neon Genesis Evangelion.

For further reading on specific roles and discography, consult comprehensive cast lists and official profiles that document his credits and releases.