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Kōichi Yamadera

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Kōichi Yamadera
Kouichi Yamadera
Kanji 山寺 宏一
Romaji Yamadera Kōichi
Personal Status
Gender Male Male
Birth Date June 17, 1961
Birth Place Shiogama, Miyagi Prefecture, Japan
Family {{{family}}}
Professional Status
Occupation(s) Actor
Voice actor
Previous Affiliation Tokyo Actor's Consumer's Cooperative Society
Affiliation Across Entertainment
Role(s) Monokuma Kubs

Kōichi Yamadera  (山寺 宏一 Yamadera Kōichi) is a Japanese actor, voice actor, and narrator affiliated with Across Entertainment.

He is known for his roles as Spike Spiegel from Cowboy Bebop, Beerus from Dragon Ball Z and Dragon Ball Super, Togusa from Ghost in the Shell, and Ryoji Kaji from Neon Genesis Evangelion.

He is voicing five self-proclaimed children of Monokuma, the Monokuma Kubs in Danganronpa V3: Killing Harmony.

Yamadera is the first person it comes to mind when you think of “the same person voicing multiple characters at the same time”. No one has as much “multiple characters” experience as him and no one has that same high quality in making themselves sound like completely different people. He took the individual quirks of each Monokuma Kubs and made all of them unique.[1]

Work on Danganronpa

Role Title
Monokumarz VA ID
Monokuma Kubs
柏木 鈴子
Danganronpa V3: Killing Harmony (2016)

Other Roles

Some of his other credits include:


  • Appleseed XIII - Briareos
  • Cowboy Bebop - Spike Spiegel
  • Dragon Ball Z - Beerus
  • Dragon Ball Super - Beerus
  • Fullmetal Alchemist: Brotherhood - Isaac McDougal
  • Sword Art Online - Akihiko Kayaba
  • Xenosaga: The Animation - Albedo Piazzolla, Gaignun Kukai

Video Games

  • Cowboy Bebop: Serenade of Reminiscence - Spike Spiegel
  • Detective Evangelion - Ryōji Kaji
  • Dissidia 012 Final Fantasy - Cain Highwind
  • Dragon Ball XenoVerse - Beerus
  • Dynasty Warriors: Gundam 2 - Gyunei Guss
  • Evangelion New Thearetical Edition: 3nd Impact - Ryōji Kaji
  • Everybody's Golf 6 - Additional Voices
  • Far East of Eden: The Fourth Apocalypse - Kamon
  • Kingdom Hearts Series - Donald Duck

External Links



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