Godzilla

Raymond Burr

Steve Martin

宝田明

Ogata

平田昭彦

Dr. Serizawa

志村喬

Dr. Yamane

河内桃子

Emiko Yamane

Emilio Cigoli

Steve Martin (voice)

Rita Savagnone

Emiko Yamane (voice)

Giuseppe Rinaldi

Ogata (voice)

?

Vittorio Cramer

George Lawrence (voice) (as Vittorio Kramer)

?

Pino Locchi

Security Officer Tomo Iwanaga (voice)

Gianfranco Bellini

Dr. Serizawa (voice) (uncredited)

?

Bruno Persa

Dr. Yamane (voice) (uncredited)

堺 左千夫

Hagiwara (uncredited)

村上冬樹

Dr. Tabata (uncredited)

山本廉

Seiji (uncredited)