When the first manned flight to Venus returns to Earth, the rocket crash-lands in the Mediterranean near a small Italian fishing village. The locals manage to save one of the astronauts Colonel Calder, the mission commander. A young boy also recovers what turns out to be a specimen of an alien creature. Growing at a fantastic rate, it manages to escape and eventually threatens the city of Rome.
as Colonel Robert Calder
as Marisa Leonardo
as Dr. Leonardo
as Dr. Judson
as Maj. Gen. A.D. McIntosh
as Commissario Unte
as Signore Contino - Government Official
as Dr. Sharman
as Pepe
as Fisherman Mondello (uncredited)
as Fisherman Verrico (uncredited)
as Reporter Reynolds (uncredited)
as Reporter Maples (uncredited)
as Felix Roi, a French reporter (uncredited)
as Farmer (uncredited)
as Man Feeding Elephant (uncredited)
as 1st Reuters News Correspondent (uncredited)
as Dr. Koruku - Japanese Scientist
