Kōichi Yamadera

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

He is known for his roles as Spike Spiegel from ', Beerus from ' and ', Togusa from ', and Ryoji Kaji from .

He is voicing five self-proclaimed children of Monokuma, the Monokumarz.