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