Donald Woods

Juan Cesare

Margaret Lindsay

Florence Ballau

C. Aubrey Smith

Gerard Lytton

Henry O'Neill

Victor Ballau

Robert Barrat

Inspector Von Brinkner

Frank Reicher

Von Stein

Charles Judels

Salvatore

Rafaela Ottiano

Lili Salvatore

Paul Porcasi

Antonio

Eily Malyon

Fredericka

Herman Bing

Baker

Henry Kolker

Auctioneer

Barlowe Borland

Eric (uncredited)

Wheaton Chambers

Servant (uncredited)

Olaf Hytten

Scotland Yard Radio Operator (uncredited)

William Irving

Policeman Schultz (uncredited)

Charles Lane

Man in Front Row (archive footage)

Eric Mayne

Bidder at Auction (uncredited)

David Newell

Rodrigo (uncredited)

Paul Panzer

Detective (uncredited)

Russ Powell

First Taxi Driver (uncredited)

Frank Thornton

(uncredited)