This article is about the
Ryōichi Tanaka (田中 亮一; born on January 26, 1947 in Suginami, Tokyo) is a Japanese voice actor currently affiliated with Aoni Production.
His younger brother was the late voice actor Kazumi Tanaka. Ryōichi Tanaka voiced Moori, Old Kai and Dr. Brief in the Dragon Ball franchise. He is also known for the roles of Akira Fudo/Devilman in Devilman, Nobita's teacher Doraemon, and Cancer Deathmask in Saint Seiya.