- Jack Lloyd
- Chief Inspector Lloyd of the C.I.D.
- Wallace Geoffrey
- Giles Wade - the Panther
- Muriel Angelus
- Sybil Craig
- Lewis Dayton
- Randall Hale - of Deep-Dene Manor
- Janice Adair
- Diana Brooks - Hale's Niece
- Tracy Holmes
- Chester Dunn - Hale's Nephew
- Emily Fitzroy
- The Manor Ghost
- Humberston Wright
- Lodgekeeper
- Gibb McLaughlin
- Abdul - and Egyptian
- Earle Stanley
- Salam - an Egyptian
- Cecil Musk
- Fouji - an Egyptian
- John Turnbull
- Barclay - Scotland Yard Superindendant
- Clifford Buckton
- Police Sergeant Sherwood
- Shayle Gardner
- Scotland Yard Inspector Walters
- Vi Kaley
- Charwoman
- Harry Gunn
- a Yokel
- Fewlass Llewellyn
- British Museum Curator
- Frank Dane
- Henchman Faraday
- Sam Lee
- Henchman Steele
- Adrian Gilbert
- Henchman Finch
- Kenneth McLaglen
- Henchman Sam
- Henry Paxton
- Hackett
- Arthur Goullet
- Keyes
- Ethel Ramsey
- Housekeeper
- Fanny Wright
- 2nd Charwoman
- Sheila Beckett
- Minor Role
- Arthur Hambling
- Minor Role
- Kathleen Harrison
- Minor Role
