Ryōichi Tanaka (田中亮一 Tanaka Ryōichi) (born January 26, 1947) is a veteran seiyu born in Suginami, Tokyo. His younger brother was the late seiyū Kazumi Tanaka. He is currently represented by Aoni Production. He is most known for the roles of Akira Fudo/Devilman (Devilman), Nobita's teacher (Doraemon), and Cancer Deathmask (Saint Seiya). In addition to the characters listed, he did voices for many no-name thugs, villagers, and soldiers in the original Hokuto no Ken TV anime.