
Quick answer — Shintarou Oohata voices Tsunemi Chiba in Beck: Mongolian Chop Squad, Doc in RADIANT Season 2, Jacob Vallory in Bakugan: Gundalian Invaders and 12 more characters.
Shintarou Oohata voices Tsunemi Chiba (Beck: Mongolian Chop Squad), Doc (RADIANT Season 2), Jacob Vallory (Bakugan: Gundalian Invaders), Shuuichirou Kagamihara (LAID-BACK CAMP SEASON2), Arai (One Outs), Kenny (Gungrave), Elmer C. Albatross (Baccano! Bangai-hen), Porta (Patema Inverted) and 7 more.
Tsunemi Chiba is voiced in Japanese by Shintarou Oohata.