
Quick answer — Teruaki Ogawa voices Keiichi Wakaouji in Looking for the Full Moon, Tetsuo Hara in GANTZ:O.
Teruaki Ogawa voices Keiichi Wakaouji (Looking for the Full Moon), Tetsuo Hara (GANTZ:O).
Keiichi Wakaouji is voiced in Japanese by Teruaki Ogawa.