Detective Lloyd

Jack Lloyd

Chief Inspector Lloyd of the C.I.D.

Muriel Angelus

Sybil Craig

Lewis Dayton

Randall Hale - of Deep Dene Manor

Emily Fitzroy

The Manor Ghost

Gibb McLaughlin

Abdul - and Egyptian

John Turnbull

Barclay - Scotland Yard Superindendant

Shayle Gardner

Scotland Yard Inspector Walters

Vi Kaley

Charwoman

Wallace Geoffrey

Giles Wade - the Panther

Janice Adair

Diana Brooks - Hale's Niece

Tracy Holmes

Chester Dunn - Hale's Nephew

Humberston Wright

Lodgekeeper

Earle Stanley

Salam - an Egyptian

Cecil Musk

Fouji - an Egyptian

Clifford Buckton

Police Sergeant Sherwood