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.
Kōzō Nomura
Ayumi Sonoda
Koreya Senda
Akihiko Hirata
Fuyuki Murakami
Yoshio Tsuchiya
Minosuke Yamada
Hisaya Ito
Yoshifumi Tajima
Nadao Kirino
Akira Sera
Akio Kusama
Noriko Honma
Akira Yamada
Fumindo Matsuo
Sōji Ubukata
Toku Ihara
Yoshikazu Kawamata
Yasuhiro Shigenobu
Takashi Itô
Mitsuo Tsuda
Takuzō Kumagai
Shōichi Hirose
Keisuke Yamada
Hideo Shibuya
Toshitsugu Suzuki
Masaki Shinohara
Michiko Kawa
Yasumasa Ônishi
Toshiko Nakano
Hiroshi Akitsu
Mitsuo Matsumoto
Toshiko Nomura
Rinsaku Ogata
Jun'ichirō Mukai
Satoko Taira
Eisuke Nakanishi
Takashi Narita
Keiichirô Katsumoto
Haruya Sakamoto
Yōichirō Kitagawa
Kô Hayami
Tokio Ôkawa
Tsurue Ichimanji
Hiroko Terasawa
Toriko Takahara
Katsumi Tezuka
Haruo Nakajima