From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Ryūsei Nakao (中尾 隆聖, Nakao Ryūsei), real name Tomoharu Takeo (竹尾 智晴, Takeo Tomoharu), (born on February 5, 1951 in Japan) is a Japanese actor, singer, and voice actor from Tōkyō Metropolis, Japan. He is attached to 81 Produce. He has also worked under the name of Tomoharu Minamiya (南谷 智晴, Minamiya Tomoharu).
His blood type is A.