Peter Lorre
Doctor Gogol
Frances Drake
Yvonne Orlac
Colin Clive
Stephen Orlac
Ted Healy
Reagan
Isabel Jewell
Marianne (scenes deleted)
Sara Haden
Marie
Edward Brophy
Rollo
Henry Kolker
Prefect Rosset
Keye Luke
Dr. Wong
May Beatty
Françoise
Ian Wolfe
Henry Orlac, Stephen Orlac's Stepfather
Edward Lippy
Pierre, Henry Orlac's Clerk (Uncredited)
Frank Darien
Lavin, Waxwork Proprietor (Uncredited)
Murray Kinnell
Charles, Theatre Official (Uncredited)
