Kappei Yamaguchi (Japanese: 山口勝平 Yamaguchi Kappei) is a Japanese seiyū in the Pokémon anime. His real name is Mitsuo Yamaguchi (Japanese: 山口光雄 Yamaguchi Mitsuo) and he was born May 23, 1965 in Fukuoka, Fukuoka. His main role is providing the voice for Todd (Japanese: トオル Tōru).

Roles on Pokémon

• Todd Snap
• Santa's Delibird
• Volbeat (Camp Pikachu)
• Parasect (Pikachu's Rescue Adventure)
• Chimchar (Pokémon Mystery Dungeon Time Expedition & Darkness Expedition)

Famous anime roles

• InuYasha in InuYasha
• Jin in Yu Yu Hakusho
• Jimmy Kudo (teenager) in Case Closed
• L in Death Note
• Ranma Saotome (male) in Ranma ½
• Usopp in One Piece

Famous dubbing roles

• Kyle Broflovski in South Park
• Bugs Bunny in Looney Tunes (replacing Kei Toriyama)
• Crypto in Destroy All Humans!