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.
Tôru Takatsuka | Masao Nakaya |
Carl Craig | Jim Crane (as Kurl Crane) |
Peter Williams | Dr. Dobie |
Genzô Wakayama | Voice of Boss |
Chikara Hashimoto | General |
Kōji Fujiyama | Commander of Jietat |
Michiko Yaegaki | Girl Scout |
Mari Atsumi | Junko Aoki |
Munehiko Takada | Jim's Father |
Junko Yashiro | Masako Shibata |
Kenichiro Yamane | Mr. Shibata |
Kenji Go | Commander at Dam |