Detective Lloyd

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