Ryosuke Otani (大谷 亮介, Ōtani Ryōsuke, born March 18, 1954)[1] is a Japanese actor and voice actor represented by the talent agency Fathers Corporation.
He graduated from Rokko Junior and Senior High School and Tokyo University of Marine Science and Technology.
On 1986, Otani launched the Tokyo Ichi theatre troupe.
After the troupe disbanded, he later launched Gekidan Ichi with Toru Kusano on 2001.
Otani was notable in Aibō as Shinsuke Miura and left the series after the first episode of season 12.