Richard Rosson
Director
Gaston Leroux
Novel
Andrew Bennison
Writer
Harry O. Hoyt
Writer
Edmund Lowe
Stanley Gordon
Leila Hyams
Anne Webster
Gustav von Seyffertitz
Prof. Paul Coriolos
E.H. Calvert
Edwin Palmer
Barry Norton
Reginald Van Lear
Oscar Smith
Sam
Perlie Marshall
Detective Murphy
Norman Trevor
Judge Webster
George Kotsonaros
The Gorilla
Maude Turner Gordon
Mrs. Van Lear
Richard Frazier
