Discover
Gene Evans
Steve Karnes
André Morell
Prof. James Bickford
Leigh Madison
Jean Trevethan
John Turner
John
Alastair Hunter
Dr. C. A. Morris, the village doctor
Lloyd Lamble
Senior Admiral, at the Admiralty
Jack MacGowran
Dr. Sampson, the paleontologist
Maurice Kaufmann
Mini Submarine Officer
Henri Vidon
Tom Trevethan
Patrick Jordan
Photo Lab Aide
Howard Lang
Naval Commader, at the "Valkyrie" wreck (uncredited)
Leonard Sachs
Dialogue Scientist at Conference (bit)
Ernest Blyth
Scientist at Conference (uncredited)
Neal Arden
TV Newscaster (uncredited)
Paul Beradi
Man Listening to Car Radio (uncredited)
Max Faulkner
PLA Radio Operator (uncredited)
Neil Hallett
Dr. Sampson's Helicopter Pilot (uncredited)
André Maranne
French Radio Officer (uncredited)
Derren Nesbitt
The Radar Operator, at the radar room (uncredited)
Guy Standeven
Naval Officer in Situation Room (uncredited)
Costume & Make-Up
Jimmy Evans
Makeup Artist
Bernadette Ibbetson
Hairstylist
Freda Gibson
Wardrobe Master
Crew
Jack Rabin
Special Effects
Pete Peterson
Special Effects
Louis DeWitt
Special Effects
Irving Block
Special Effects
Willis H. O'Brien
Special Effects
Directing
Douglas Hickox
Director
Eugène Lourié
Director
Kim Mills
First Assistant Director
Jennifer Herrinshaw
Continuity
Editing
Lee Doig
Editor
Sound
Edwin Astley
Original Music Composer
Richard Marden
Sound Editor
Edwin Astley
Conductor
Sid Wiles
Sound