Diễn viên
John Carradine
Sanatorium Inmate (voice) (uncredited)
Don Rowan
Juror (uncredited)
Harry Strang
Court Attendant (uncredited)
Charles Butterworth
Felix
Sara Haden
Henrietta Hargraves
Gavin Muir
Dr. Barth
Paul Stanton
District Attorney
Julius Tannen
City Editor
Paul McVey
Coroner
Andrew Tombes
Jury Foreman (uncredited)
Frances Dee
Allison Lang
Helen Westley
Mrs. Hargraves
Nigel De Brulier
Dr. Hall
Philip Sleeman
Carl
Brian Donlevy
Duffy Giles
Henry Stephenson
Professor Jerome Hargraves
Etienne Girardot
Dr. Cotton
Hilda Vaughn
Bertha