"Two opposing characters are hidden in the person of the inconspicuous London gentleman Dr. Warren and Janus. Lost film."
Conrad Veidt
as Dr. Warren
Magnus Stifter
as Warrens Freund
Margarete Schlegel
as Grace
Willy Kaiser-Heyl
as o. A.
Bela Lugosi
as Warren's Butler
Margarete Kupfer
Danny Guertler
Gustav Botz
Jaro Fürth
Hans Lanser-Rudolf
Marga Reuter
Lanja Rudolph
Erich Pommer
Producer
Karl Freund
Director of Photography
Hans Janowitz
Screenplay
F. W. Murnau
Director
Carl Hoffmann
Robert Louis Stevenson
Novel
Carl Weiss
Heinrich Richter
Set Designer