From Bulbapedia, the community-driven Pokémon encyclopedia.
Susumu Chiba (Japanese: 千葉進歩 Chiba Susumu) is a Japanese seiyū for the Pokémon anime. He was born in Kanagawa, Japan on September 13th, 1970.
Chiba's most notable role on Pokémon was that of Lance. He has also voiced a few Pokémon and characters of the day.
Voices on Pokémon