John Newland
Algernon 'Algy' Longworth
Helen Westcott
Cynthia Stedman
Tom Conway
Capt. Hugh 'Bulldog' Drummond
Terry Kilburn
Seymour
William Edmunds
Prager - Antique Dealer (uncredited)
Harry Cording
Edward Vane
Maria Palmer
Estelle Prager, alias Estelle Gorday
Gordon Richards
Police Insp. McIver
William Stelling
Phillip Coleman