From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Kōhei Miyauchi (宮内 幸平, Miyauchi Kōhei) (August 4, 1929 – June 2, 1995) was a Japanese voice actor born in Kagoshima Prefecture, Japan. He was born Takayuki Miyauchi (宮内 孝幸, Miyauchi Takayuki).
On June 2, 1995, Miyauchi died on his hospital bed at the Nihon University Itabashi Hospital from abdominal varices. At the time of Miyauchi's death, he was represented by Aoni Production.