From Bulbapedia, the community-driven Pokémon encyclopedia.
Kōichi Sakaguchi (Japanese: 坂口候一 Sakaguchi Kōichi) is a voice actor for the Japanese version of the Pokémon anime.
Sakaguchi joined the series early on, playing various Pokémon roles. He still contributes his voice to the series as minor characters and Pokémon. His most prominent roles are those of Jessie's Ekans/Arbok and Raoul Contesta.
* No official credit was given for this character.
Other non-Pokémon roles