Hiroshi Koizumi
Shoichi Tsukioka
Acting
Keye Luke
Shoichi Tsukioka (voice)
Acting
Setsuko Wakayama
Hidemi Yamaji
Acting
Aya Oyama
Hidemi Yamaji (voice)
Acting
Minoru Chiaki
Kôji Kobayashi
Acting
Marvin Miller
Koji Kobayashi / Narrator (voices)
Acting
Masao Shimizu
Dr. Tadokoro
Acting
Mayuri Mokushô
Yasuko Inouye, Koji's girl
Acting
Takeo Oikawa
Osaka Chief of Police
Acting
Minosuke Yamada
Chief of Civil Defense
Acting
Takashi Shimura
Doctor Yamane
Acting
Sonosuke Sawamura
Foreman Shibeki
Acting
Yoshio Tsuchiya
Member of Osaka's SDF Tajima
Acting
Yukio Kasama
President of Fishery Koehi Yamaji
Acting
Paul Frees
Doctor Kyohei Yamane, Commander of Osaka's SDF Terasawa, President of Fishery Koehi Yamaji (voices)
Acting
Ren Yamamoto
Commander of Landing Craft Ikeda
Acting
George Takei
Commander of Landing Craft Ikeda (voice)
Acting
Seijirô Onda
Commander of Osaka's SDF Terasawa
Acting
Shin Ōtomo
Convict Leader
Acting
Senkichi Ōmura
Convict
Acting
Haruo Nakajima
Gigantis
Acting
Katsumi Tezuka
Angurus
Acting
Shōichi Hirose
Convict
Acting