When a rare species of butterfly is found in a mysterious valley in Japan, a pair of entomologists go to investigate and find more. They discover Varan, a giant monster, who decides to leave the valley and head straight for Tokyo.
Kenji Uozaki
Yuriko Shinjô
Dr. Sugimoto
Dr. Fujimora
Dr. Majima
Military Officer Katsumoto
Secretary of Defense
Ichiro
Captain of Uranami
Yutaka Wada
Village High Priest
Military Officer Kusama
Ken's Mom
Issaku
Horiguchi
Jiro
Sankichi
Ken
Fisherman
Cameraman
Fisherman
Varan
Varan
