Toku Nishio (西尾 徳, Nishio Toku; September 12, 1939 – July 19, 2005) was a Japanese actor and voice actor from Gifu Prefecture, Japan. He was represented by Tokyo Actor's Consumer's Cooperative Society. He was most known for the roles of Kanichi Nishi (Ashita no Joe), Musashi Tomoe (Getter Robo), and Mr. Popo (Dragon Ball).
Source: “Toku Nishio”, English Wikipedia (CC BY-SA 4.0), excerpt