Colonel Robert Calder

Marisa Leonardo

Dr. Leonardo

Dr. Judson

Maj. Gen. A.D. McIntosh

Commissario Unte

Signore Contino - Government Official

Dr. Sharman

Pepe

Fisherman Mondello (uncredited)

Fisherman Verrico (uncredited)

Reporter Reynolds (uncredited)

Reporter Maples (uncredited)

Felix Roi, a French reporter (uncredited)

Farmer (uncredited)

Man Feeding Elephant (uncredited)

1st Reuters News Correspondent (uncredited)

Dr. Koruku - Japanese Scientist