Kōji Wakamatsu
An early film appearance was in the 1963 Kōji Wakamatsu sex film "Amai Wana" in which he co-starred with Tamaki Katori. The 1965 "Ken Ki" with "jidaigeki" superstar Raizo Ichikawa was a move to the mainstream. Mutsumi had a voice role in the 1966 "War of the Gargantuas". Films that received attention outside Japan include "Godzilla vs. Mechagodzilla" (1974), "Terror of Mechagodzilla" (1975) and "The War in Space" (1977). He also appeared in the 1992 Toho film "Minbo".