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