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)

Eddie Baker
Courtroom Spectator (uncredited)

George Blagoi
Juror (uncredited)

George Calliga
Courtroom Spectator (uncredited)

Steve Carruthers
Barrister (uncredited)

Minta Durfee
Courtroom Spectator (uncredited)

Marjorie Eaton
Miss O'Brien (uncredited)

Franklyn Farnum
Barrister (uncredited)

Bess Flowers
Courtroom spectator (uncredited)

Stuart Hall
Courtroom Spectator (uncredited)

Michael Jeffers
Cafe Patron (uncredited)

Colin Kenny
Juror (uncredited)

Paul Kruger
Courtroom Spectator (uncredited)

Wilbur Mack
Courtroom Spectator (uncredited)

Frank McLure
Court Officer (uncredited)

Ottola Nesmith
Miss Johnson (uncredited)

William H. O'Brien
Barrister (uncredited)

J. Pat O'Malley
Shorts Salesman (uncredited)

Jack Raine
Doctor (uncredited)

Leoda Richards
Hat Store Sales Clerk (uncredited)

John Roy
Courtroom Spectator (uncredited)

Scott Seaton
Courtroom Spectator (uncredited)

Cap Somers
Courtroom Spectator (uncredited)

Bert Stevens
Courtroom Spectator (uncredited)

Jeffrey Sayre
Clerk at Old Bailey (uncredited)

Norbert Schiller
Spotlight Operator in German Cafe (uncredited)

Arthur Tovey
Courtroom Spectator (uncredited)

Ben Wright
Barrister Reading Charges (uncredited)