
Quick answer — Wataru Takagi voices Masaru Aoki in Hajime no Ippo: The Fighting!, Eikichi Onizuka in GTO: Great Teacher Onizuka, Okuyasu Nijimura in JoJo's Bizarre Adventure: Diamond is Unbreakable and 72 more characters.



























































Wataru Takagi voices Masaru Aoki (Hajime no Ippo: The Fighting!), Eikichi Onizuka (GTO: Great Teacher Onizuka), Okuyasu Nijimura (JoJo's Bizarre Adventure: Diamond is Unbreakable), Kaiman (Dorohedoro), Alaindelon Bathin de Emuna (Beelzebub), Garrod Ran (After War Gundam X), Zeiram (Iria: Zeiram The Animation), Zeus (Record of Ragnarok) and 67 more.
Masaru Aoki is voiced in Japanese by Wataru Takagi.