Cast
Cyril Chadwick
Brandon Trent
Lal Chand Mehra
Chotee
Leila Hyams
Helen 'Nellie' O'Neill
Holmes Herbert
Sir Roscoe Crosby
Frank Leigh
Professor Feringeea
Mary Forbes
Lady Alice Crosby
Béla Lugosi
Inspector Delzante
John Davidson
Edward 'Ned' Wales
Clarence Geldart
Commissioner Grimshaw
Conrad Nagel
Richard Crosby
Margaret Wycherly
Madame Rosalie La Grange
Helene Millard
Mary Eastwood