Cast
岡部正
Dr. Tabata's Assistant (uncredited)
Frank Iwanaga
Security Officer Tomo Iwanaga (uncredited)
Mikel Conrad
George Lawrence (uncredited)
堺 左千夫
Hagiwara (uncredited)
山本廉
Seiji (uncredited)
佐原健二
Man on Boat (uncredited)
中島春雄
Godzilla (uncredited)
手塚 勝巳
Godzilla (uncredited)
宝田明
Ogata
志村喬
Dr. Yamane
小川虎之助
President of Company (uncredited)
Raymond Burr
Steve Martin
Emilio Cigoli
Steve Martin (voice)
Rita Savagnone
Emiko Yamane (voice)
Giuseppe Rinaldi
Ogata (voice)
高堂国典
The Old Fisherman (uncredited)
平田昭彦
Dr. Serizawa
河内桃子
Emiko Yamane
Gianfranco Bellini
Dr. Serizawa (voice) (uncredited)
村上冬樹
Dr. Tabata (uncredited)