Kōzō Nomura as Kenji Uozaki

Ayumi Sonoda as Yuriko Shinjô

Koreya Senda as Dr. Sugimoto

Akihiko Hirata as Dr. Fujimora, bomb expert

Fuyuki Murakami as Dr. Majima, Sugimoto's aide

Yoshio Tsuchiya as Military Officer Katsumoto

Minosuke Yamada as Secretary of Defense

Hisaya Ito as Ichiro, Yuriko's brother

Yoshifumi Tajima as Captain of Uranami

Nadao Kirino as Yutaka Wada

Akira Sera as Village High Priest

Akio Kusama as Military Officer Kusama

Noriko Honma as Ken's Mom

Akira Yamada as Issaku

Fumindo Matsuo as Horiguchi

Sōji Ubukata as

Toku Ihara as

Yoshikazu Kawamata as Jiro

Yasuhiro Shigenobu as Sankichi

Takashi Itô as Ken, the boy

Mitsuo Tsuda as

Takuzō Kumagai as (as Jirô Kumagai)

Shōichi Hirose as Fisherman

Keisuke Yamada as

Hideo Shibuya as Cameraman

Toshitsugu Suzuki as Fisherman (as Kôji Suzuki)

Masaki Shinohara as

Michiko Kawa as

Yasumasa Ônishi as (as Yasuo Ônishi)

Toshiko Nakano as

Hiroshi Akitsu as

Mitsuo Matsumoto as

Toshiko Nomura as

Rinsaku Ogata as

Jun'ichirō Mukai as

Satoko Taira as

Eisuke Nakanishi as

Takashi Narita as

Keiichirō Katsumoto as

Haruya Sakamoto as

Yōichirō Kitagawa as (as Ryûichi Hosokawa)

Kô Hayami as

Tokio Ôkawa as

Tsurue Ichimanji as (as Tazue Ichimanji)

Hiroko Terasawa as

Toriko Takahara as

Katsumi Tezuka as Varan

Haruo Nakajima as Varan