Police Inspector Lewis Lane
Mr. Monroe, Prosecuting Attorney
Radio Announcer (voice) (uncredited)
Millie - Mrs. Updyke's Maid (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)
Pedestrian at Burglary Site (uncredited)
Fingerprint Expert (uncredited)
Police Sergeant (uncredited)
Mrs. Updyke's Watchman (uncredited)
Mrs. Ganswoort - Patient (uncredited)
Alarm Company Operator (uncredited)
Inspector Connors (uncredited)
Sequin Hotel Desk Clerk (uncredited)
Second Detective (uncredited)
Professor O.J. Ludwig (uncredited)
Third Detective (uncredited)
Updyke's Guest (uncredited)
Mrs. Jefferson - Jo's Maid (uncredited)
First Detective - with Earphones (uncredited)