Trailer
Cast
Gene Evans
Steve Karnes
Jack MacGowran
Dr. Sampson, the paleontologist
Henri Vidon
Tom Trevethan
Patrick Jordan
Photo Lab Aide
Guy Standeven
Naval Officer in Situation Room (uncredited)
Leigh Madison
Jean Trevethan
Alastair Hunter
Dr. C. A. Morris, the village doctor
Maurice Kaufmann
Mini Submarine Officer
André Maranne
French Radio Officer (uncredited)
André Morell
Prof. James Bickford
Lloyd Lamble
Senior Admiral, at the Admiralty
Max Faulkner
PLA Radio Operator (uncredited)
Derren Nesbitt
The Radar Operator, at the radar room (uncredited)
John Turner
John
Leonard Sachs
Dialogue Scientist at Conference (bit)
Neil Hallett
Dr. Sampson's Helicopter Pilot (uncredited)