As alien invaders plot to conquer the Earth, two Boy Scouts steal a mini-submarine and discover Gamera in their midst. Transported to the alien's spaceship, the Scouts are menaced by the evil inhabitants, including Viras, a squid-like monster that grows to colossal size to battle Gamera.
Director:
Writer:
Kōjirō Hongō
Scout Master Mr. Shimida
Tôru Takatsuka
Masao Nakaya
Carl Craig
Jim Morgan
Michiko Yaegaki
Mariko
Peter Williams
Dr. Dobie
Kōji Fujiyama
Self-Defense Force Commander
Mari Atsumi
Junko Aoki
Junko Yashiro
Masako Shibata
Yoshirō Kitahara
Masao's Father
Munehiko Takada
Jim's Father
Mary Morris
Jim’s Mother
Chikara Hashimoto
Doctor 1
Kenji Go
Doctor 2
Shō Natsuki
Doctor 3
Ken Nakahara
Doctor 4
Kenichiro Yamane
Doctor 5
Genzō Wakayama
Boss (voice)
Teruo Aragaki
Gamera
