
Quick answer — Masahiro Kobayashi voices Jason Ozuma in Hajime no Ippo: The Fighting!, Barret Wallace in Final Fantasy VII: Advent Children.
Masahiro Kobayashi voices Jason Ozuma (Hajime no Ippo: The Fighting!), Barret Wallace (Final Fantasy VII: Advent Children).
Jason Ozuma is voiced in Japanese by Masahiro Kobayashi.