
Quick answer — Yuuichi Ishigami voices Hideo Hayama in the Garden of sinners Chapter 6: Fairy Tale. (Oblivion Recording), Kenta Oyajima in Kodomo no Jikan, Youichi Koumoto in Good Luck! Ninomiya-kun.
Yuuichi Ishigami voices Hideo Hayama (the Garden of sinners Chapter 6: Fairy Tale. (Oblivion Recording)), Kenta Oyajima (Kodomo no Jikan), Youichi Koumoto (Good Luck! Ninomiya-kun).
Hideo Hayama is voiced in Japanese by Yuuichi Ishigami.