Ken Yamaguchi (山口 健), born Kiyoshige Yamaguchi (山口 清成), was a Japanese voice actor.
Monster
Black Lagoon
Grimm's Fairy Tale Classics
Spaceship Sagittarius
Dragon Quest: The Adventure of Dai
Kousoku Sentai Turboranger
Chōjin Sentai Jetman
Hikari Sentai Maskman
Miracle Girls
Tottoi
Yume no Crayon Oukoku
