Kim Novak

Carly Hardwicke

Jack Lemmon

Bill Gridley

Fred Astaire

Franklyn Ambruster

Lionel Jeffries

Inspector Oliphant

Estelle Winwood

Mrs. Dunhill

Maxwell Reed

Miles Hardwicke

Philippa Bevans

Agatha Brown

Henry Daniell

Stranger

Ronald Long

Coroner

Richard Peel

Dillings

Doris Lloyd

Lady Fallott

Bess Flowers

Courtroom Spectator (uncredited)

Leoda Richards

Trial Spectator (uncredited)

Iris Bristol

Agatha (uncredited)

Leon Alton

Courtroom Spectator (uncredited)

Al Bain

Courtroom Spectator (uncredited)

Frank Baker

Bar Patron (uncredited)

Brandon Beach

Juror (uncredited)

Marjorie Bennett

Autograph Seeker (uncredited)

Barry Bernard

Attendant (uncredited)