Witness for the Prosecution

Tyrone Power

Leonard Vole

Marlene Dietrich

Christine

Charles Laughton

Sir Wilfrid

Elsa Lanchester

Miss Plimsoll

John Williams

Brogan-Moore

Henry Daniell

Mayhew

Ian Wolfe

Carter

Torin Thatcher

Mr. Myers

Norma Varden

Mrs. French

Una O'Connor

Janet

Francis Compton

Judge

Philip Tonge

Inspector Hearne

Ruta Lee

Diana

Patrick Aherne

Court Officer (uncredited)

Walter Bacon

Bar Patron (uncredited)

Eddie Baker

Courtroom Spectator (uncredited)