Full Credits
30 members

Michael Redgrave
David Charleston

Barbara Mullen
Ellen Kirby

James Mason
Streeter

Lilli Palmer
Melanie Kurtz

Finlay Currie
Capt. Joshua Stuart

Frederick Valk
Dr. Kurtz

Sybille Binder
Anne Marie
Frederick Cooper
Briggs
Jean Shepeard
Mrs. Briggs

Barry Morse
Robert

George Carney
Harry

Miles Malleson
Chairman of Directors

Bryan Herbert
Flanning
James Pirrie
New Pilot

A.E. Matthews
Mr. Kirby
Olive Sloane
Woman Director

Tommy Duggan
Office Clerk
Tony Quinn
Office Clerk
Harold Anstruther
British Consul
Alfred Sangster
Director

Gerard Heinz
Dr. Hartmann (uncredited)

Vi Kaley
Old Woman in Cell (uncredited)
David Keir
1st Magistrate (uncredited)

Andreas Malandrinos
Italian Police Chief (uncredited)

Arnold MarlΓ©
President of the Medical Society (uncredited)
Bernard Rebel
Italian Passenger (uncredited)

Victor Rietti
Doctor (uncredited)
Raymond Rollett
1st Judge (uncredited)

Milo Sperber
Mr. Hirohiti (uncredited)
George Spence
Man Asleep in Theatre (uncredited)
17 members
Roy Boulting
Director
Bill Herlihy
Third Assistant Director
Jeffrey Dell
Screenplay
Bernard Miles
Screenplay
Robert Ardrey
Theatre Play
John Boulting
Producer
Mutz Greenbaum
Director of Photography
Jack Hildyard
Camera Operator
Hans May
Music
Percy Dayton
Boom Operator
Duncan Sutherland
Art Direction
Elliot Scott
Assistant Art Director
Honoria Plesch
Costume Design
Roy Boulting
Editor
John Cook
Sound Recordist
Frederick Ford
Special Effects
Tom Howard
Special Effects