
Quick answer — Min Tanaka voices Moumoku no Otoko in Modest Heroes: Ponoc Short Films Theatre, Volume 1, Jim Cusack in Children of the Sea.
Min Tanaka voices Moumoku no Otoko (Modest Heroes: Ponoc Short Films Theatre, Volume 1), Jim Cusack (Children of the Sea).
Moumoku no Otoko is voiced in Japanese by Min Tanaka.