Hiroshi Koizumi

~ as ~

Shoichi Tsukioka

Setsuko Wakayama

~ as ~

Hidemi Yamaji

Minoru Chiaki

~ as ~

Kôji Kobayashi

Takashi Shimura

~ as ~

Kyohei Yamane-hakase

Masao Shimizu

~ as ~

Zoologist Dr. Tadokoro

Seijirô Onda

~ as ~

Captain Terasawa of Osaka Defense Corps

Sonosuke Sawamura

~ as ~

Hokkaido Branch Manager Shingo Shibeki

Yoshio Tsuchiya

~ as ~

Tajima, Member of Osaka Defense Corps

Mayuri Mokushô

~ as ~

Radio Operator Yasuko Inouye

Minosuke Yamada

~ as ~

Chief of Civil Defense