Ray Milland as Tony Wendice

Grace Kelly as Margot Wendice

Robert Cummings as Mark Halliday

John Williams as Chief Inspector Hubbard

Anthony Dawson as Charles Swann

Leo Britt as Storyteller

Patrick Allen as Detective Pearson

George Leigh as Detective Williams

George Alderson as First Detective

Robin Hughes as Police Sergeant O'Brien

Jack Cunningham as Bobby (uncredited)

Guy Doleman as Detective (uncredited)

Bess Flowers as Woman Exiting Ship (uncredited)

Sam Harris as Man in Phone Booth (uncredited)

Harold Miller as Men's Club Party Member (uncredited)

Martin Milner as Policeman Outside Wendice Flat (uncredited)

Forbes Murray as Judge at Margot's Trial (uncredited)

Thayer Roberts as Detective (uncredited)

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

Alfred Hitchcock as Banquet Member (uncredited)

Herschel Graham as Banquet Member (uncredited)

Robert Dobson as Police Photographer (uncredited)