George Sanders
Simon Templar
Helene Reynolds
Anne Bitts
Jonathan Hale
Inspector Henry Fernack
Bela Lugosi
Partner
Donald MacBride
Inspector John H. Bohlen
John F. Hamilton
Limpy
Thomas W. Ross
Professor Horatio T. Bitts
Elliott Sullivan
Monk 'Warren'
Stanley Blystone
Detective Sadler (uncredited)
Ralph Dunn
Police Sergeant (uncredited)
Byron Foulger
Ephraim Byrd (uncredited)
Billy Franey
Street Shooting Witness (uncredited)
Edward Gargan
Police Sergeant (uncredited)
William Haade
Helm Van Roon aka 'The Dutchman' (uncredited)
Donald Kerr
Card Player (uncredited)
Pat McKee
Card Player (uncredited)
Lal Chand Mehra
Cairo Express Office Clerk (uncredited)
Walter Miller
Mac (uncredited)
Pat O'Malley
Express Man (uncredited)
Jack O'Shea
Spectator on Street (uncredited)
Lee Phelps
Police Sergeant Outside Bohlen's Office (uncredited)
Fred Rapport
Jeweler (uncredited)
Sammy Stein
Policeman (uncredited)