
Quick answer — Osamu Katou voices Wolf Kanagushi in Tomorrow's Joe, Anderson in Treasure Island, Garcia in City Hunter and 2 more characters.
Osamu Katou voices Wolf Kanagushi (Tomorrow's Joe), Anderson (Treasure Island), Garcia (City Hunter), Duke Dermail (Mobile Suit Gundam Wing), Roberto Gomez (Mobile Suit Victory Gundam).
Wolf Kanagushi is voiced in Japanese by Osamu Katou.