Susan Strasberg

Penny Appleby

Ronald Lewis

Robert

Ann Todd

Jane Appleby

Christopher Lee

Doctor Pierre Gerrard

John Serret

Inspector Legrand

Leonard Sachs

Mr. Spratt

Anne Blake

Marie the Maid

Fred Johnson

Mr. Appleby

Madame Lobegue

Swiss Air Hostess (uncredited)

Bernard Browne

Gendarme (uncredited)

Frederick Rawlings

Plainclothes Sergeant (uncredited)

Richard Klee

Plainclothes Sergeant (uncredited)

Brian Jackson

Plainclothes Officer (uncredited)

Heinz Bernard

Plainclothes Officer (uncredited)

Frederick Schrecker

Plainclothes Officer (uncredited)

Gordon Sterne

Policeman (uncredited)

Rodney Burke

Policeman (uncredited)

Seth Holt

Director

Jimmy Sangster

Writer

Michael Carreras

Executive Producer

Jimmy Sangster

Producer

Clifton Parker

Original Music Composer

Douglas Slocombe

Director of Photography

Eric Boyd-Perkins

Editor

Bernard Robinson

Production Design

Desmond Davis

Camera Operator

Stuart Lyons

Casting

Thomas Goswell

Art Direction

Eileen Bates

Hairstylist

Basil Newall

Makeup Artist

William Hill

Production Manager

David Tomblin

Assistant Director

Terry Lens

Second Assistant Director

William Constable

Assistant Art Director

Jim Groom

Sound Editor

Teddy Mason

Sound Recordist

Len Shilton

Sound Recordist

John Crome

Assistant Sound Editor

Les Bowie

Special Effects

Ian Scoones

Special Effects Assistant

Ray Andrew

Clapper Loader

Len Harris

Additional Camera

George Higgins

Still Photographer

John Jordan

Underwater Camera

Harry Oakes

Additional Camera

Egil S. Woxholt

Underwater Camera

Dora Lloyd

Wardrobe Master

James Needs

Supervising Editor

John Crome

Assistant Editor

John Hollingsworth

Music Supervisor

Pamela Mann

Continuity

Les Hammond

Sound Recordist