
Quick answer — Tsutomu Isobe voices Heinrich Runge in Monster, Vincent Volaju in Cowboy Bebop: The Movie - Knockin' on Heaven's Door, Hiromichi Kojima in One Outs and 15 more characters.
Tsutomu Isobe voices Heinrich Runge (Monster), Vincent Volaju (Cowboy Bebop: The Movie - Knockin' on Heaven's Door), Hiromichi Kojima (One Outs), Douglas Bullet (One Piece: Stampede), Dutch (Black Lagoon), Gasback Gallon Getaway (Trigun: Badlands Rumble), Heintz Beckner (Memories), Enmi (Gintama: The Final Chapter - Be Forever Yorozuya) and 10 more.
Heinrich Runge is voiced in Japanese by Tsutomu Isobe.