Ryo Oshima apareceu em 1 série e nenhum filme. Um desempenho a ser encontrado no papel de Assistant Director #2 (voice) / Assistant Director (voice) / Assistant Director A (voice) / Audience #1 (voice) / Audience #2 (voice) / Boy A (voice) / Cameraman (voice) / Murderer (voice) / Passerby (voice) / Staff #2 (voice) na série THE iDOLM@STER.