Hailing from Kobe, Gorō Mutsumi entered the Japanese entertainment world after his 1955 film debut in Saranohanano Tōge and quickly became known for portraying villains in jidaigeki and tokusatsu productions. Early roles such as the 1963 sex film Amai Wana and the 1965 mainstream Ken Ki with Raizo Ichikawa broadened his profile, while a voice part in the 1966 War of the Gargantuas marked his entry…