Générique complet
House of Blackmail
Mary Germaine
Carol Blane
William Sylvester
Jimmy
Alexander Gauge
John Markham
Denis Shaw
Bassett
Ingeborg von Kusserow
Emma
Patricia Owens
Joan
CW
C. Denier Warren
Jock
BW
Barry Wynne
Billy Blane
HS
Hugo Schuster
Dr. Welich
John Arnatt
Pete Carter
Sidney Vivian
Police Inspector (uncredited)
JW
John H. Watson
Bert - Café Customer (uncredited)
