Full Credits
22 members

Ray Milland
Tony Wendice

Grace Kelly
Margot Wendice

Robert Cummings
Mark Halliday

John Williams
Chief Inspector Hubbard

Anthony Dawson
Charles Swann
Leo Britt
Storyteller

Patrick Allen
Detective Pearson
George Leigh
Detective Williams
George Alderson
First Detective

Robin Hughes
Police Sergeant O'Brien

Jack Cunningham
Bobby (uncredited)

Guy Doleman
Detective (uncredited)

Bess Flowers
Woman Exiting Ship (uncredited)
Sam Harris
Man in Phone Booth (uncredited)

Harold Miller
Men's Club Party Member (uncredited)

Martin Milner
Policeman Outside Wendice Flat (uncredited)

Forbes Murray
Judge at Margot's Trial (uncredited)

Thayer Roberts
Detective (uncredited)

William H. O'Brien
Waiter at Stag Dinner (uncredited)

Alfred Hitchcock
Banquet Member (uncredited)
Herschel Graham
Banquet Member (uncredited)
Robert Dobson
Police Photographer (uncredited)
14 members
Alfred Hitchcock
Director
Mel Dellar
Assistant Director
Frederick Knott
Theatre Play
Frederick Knott
Screenplay
Alfred Hitchcock
Producer
Robert Burks
Director of Photography
Dimitri Tiomkin
Original Music Composer
Oliver S. Garretson
Sound
Dimitri Tiomkin
Conductor
Edward Carrere
Art Direction
George James Hopkins
Set Decoration
Gordon Bau
Makeup Artist
Moss Mabry
Costume Design
Rudi Fehr
Editor