A masked criminal who dresses like a giant bat terrorizes the guests at an old house rented by a mystery writer.
George Beranger
Gideon Bell
Charles Herzinger
Courleigh Fleming
Emily Fitzroy
Cornelia Van Gorder
Louise Fazenda
Lizzie Allen
Arthur Housman
Richard Fleming
Robert McKim
Dr. Wells
Jack Pickford
Brooks Bailey
Jewel Carmen
Dale Ogden
Sôjin Kamiyama
Billy the Butler
Eddie Gribbon
Detective Anderson
Tullio Carminati
Detective Moletti
Lee Shumway
The Unknown
