A prehistoric monster called Gigantis emerges alongside another creature named Angurus.
Hiroshi Koizumi
Tsukioka
Setsuko Wakayama
Hidemi
Minoru Chiaki
Kobayashi (as Mindru Chiaki)
Takashi Shimura
Dr. Yamane
Masao Shimizu
Dr. Tadokoro
Seijirô Onda
Commander (as Serjiro Onda)
Sonosuke Sawamura
Shibeki
Yoshio Tsuchiya
Tajima
