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