Takanori Ōyama (大山 鎬則, Ōyama Takanori, born March 8, 1974) is a male Japanese actor, voice actor and playwright from Aichi Prefecture, Japan. He is probably most known for the roles as Kanji Sasahara (Genshiken) and Yasunobu Hattori (Suzuka). He is the president of the Signals theatre company, and he is in charge of writing and directing.