Le mystérieux docteur Clitterhouse
Un médecin bien établi devient un meurtrier dans le but de faire des études sur la criminalité et le cerveau des criminels.
Dr. T.S. Clitterhouse
Jo Keller
'Rocks' Valentine
Okay
Police Inspector Lewis Lane
Nurse Randolph
Judge
Mr. Monroe, Prosecuting Attorney
Grant
Tug
Radio Announcer (voice) (uncredited)
Millie - Mrs. Updyke's Maid (uncredited)
Butch
Popus
Pat
Rabbit
Candy
Lt. Johnson
Foreman of Jury
Guest (uncredited)
Gambler in Room 920 (uncredited)
Captain MacLevy (uncredited)
Police Chemist (uncredited)
Spectator at Robbery (uncredited)
Mrs. Frederick R. Updyke (uncredited)
Roberts - Updyke's Butler (uncredited)
Alarm Company Clerk (uncredited)
Nurse Conner (uncredited)
Courtroom Spectator (uncredited)
Detective Getting Rocks' Fingerprints (uncredited)
Policeman (uncredited)
Pedestrian at Burglary Site (uncredited)
Surgeon (uncredited)
Fingerprint Expert (uncredited)
Gambler (uncredited)
Police Sergeant (uncredited)
Mrs. Updyke's Watchman (uncredited)
Mrs. Ganswoort - Patient (uncredited)
Alarm Company Operator (uncredited)
Inspector Connors (uncredited)
Juror (uncredited)
Sequin Hotel Desk Clerk (uncredited)
Bailiff (uncredited)
Second Detective (uncredited)
Professor O.J. Ludwig (uncredited)
Third Detective (uncredited)
Updyke's Guest (uncredited)
Dr. Ames (uncredited)
Patient (uncredited)
Mrs. Jefferson - Jo's Maid (uncredited)
Forensic (uncredited)
First Detective - with Earphones (uncredited)
Patricia (uncredited)
