Hiroshi Koizumi
Shoichi Tsukioka
Setsuko Wakayama
Hidemi Yamaji
Minoru Chiaki
Kôji Kobayashi
Takashi Shimura
Kyohei Yamane-hakase
Masao Shimizu
Zoologist Dr. Tadokoro
Seijirô Onda
Captain Terasawa of Osaka Defense Corps
Sonosuke Sawamura
Hokkaido Branch Manager Shingo Shibeki
Yoshio Tsuchiya
Tajima, Member of Osaka Defense Corps
Mayuri Mokushô
Radio Operator Yasuko Inouye
Minosuke Yamada
Chief of Civil Defense
Yukio Kasama
Koehi Wamaji, President of the Fishery
Senkichi Ōmura
Small Escaped Convict
Ren Yamamoto
Commander of Landing Craft
Shin Ōtomo
Convict Leader
Takeo Oikawa
Osaka Municipal Police Commissioner
Shōichi Hirose
Convict
Teruko Mita
'Yayoi' Madam
Haruo Nakajima
Godzilla
Katsumi Tezuka
Anguirus
Miyoko Hoshino
Cabaret Singer
Toku Ihara
Policeman
Takuzō Kumagai
Hokkai-Maru Captain
Tadao Nakamaru
Policeman
Hideo Shibuya
Visitor of Cabaret
Shigemi Sunagawa
Visitor of Cabaret
Masaaki Tachibana
Policeman
Kôji Uno
Shibeki's Assistant
Shin Yoshida
Convict