All Cast

Gene Evans

Gene Evans

Steve Karnes

André Morell

André Morell

Prof. James Bickford

Leigh Madison

Leigh Madison

Jean Trevethan

John Turner

John Turner

John

Alastair Hunter

Alastair Hunter

Dr. C. A. Morris, the village doctor

Lloyd Lamble

Lloyd Lamble

Senior Admiral, at the Admiralty

Jack MacGowran

Jack MacGowran

Dr. Sampson, the paleontologist

Maurice Kaufmann

Maurice Kaufmann

Mini Submarine Officer

Henri Vidon

Henri Vidon

Tom Trevethan

Patrick Jordan

Patrick Jordan

Photo Lab Aide

Howard Lang

Howard Lang

Naval Commader, at the "Valkyrie" wreck (uncredited)

Leonard Sachs

Leonard Sachs

Dialogue Scientist at Conference (bit)

Ernest Blyth

Ernest Blyth

Scientist at Conference (uncredited)

Neal Arden

Neal Arden

TV Newscaster (uncredited)

Paul Beradi

Paul Beradi

Man Listening to Car Radio (uncredited)

Max Faulkner

Max Faulkner

PLA Radio Operator (uncredited)

Neil Hallett

Neil Hallett

Dr. Sampson's Helicopter Pilot (uncredited)

André Maranne

André Maranne

French Radio Officer (uncredited)

Derren Nesbitt

Derren Nesbitt

The Radar Operator, at the radar room (uncredited)

Guy Standeven

Guy Standeven

Naval Officer in Situation Room (uncredited)