Edward G. Robinson
Dr. T.S. Clitterhouse
Humphrey Bogart
'Rocks' Valentine
Donald Crisp
Police Inspector Lewis Lane
John Litel
Mr. Monroe, Prosecuting Attorney
Ronald Reagan
Radio Announcer (voice) (uncredited)
Mary Field
Millie - Mrs. Updyke's Maid (uncredited)
Irving Bacon
Foreman of Jury
John Alban
Guest (uncredited)
Frank Anthony
Gambler in Room 920 (uncredited)
Wade Boteler
Captain MacLevy (uncredited)
Sidney Bracey
Police Chemist (uncredited)
John Breen
Spectator at Robbery (uncredited)
Georgia Caine
Mrs. Frederick R. Updyke (uncredited)
Romaine Callender
Roberts - Updyke's Butler (uncredited)
Glen Cavender
Alarm Company Clerk (uncredited)
Loia Cheaney
Nurse Conner (uncredited)
Bud Cokes
Courtroom Spectator (uncredited)
Hal Craig
Detective Getting Rocks' Fingerprints (uncredited)
Ray Dawe
Policeman (uncredited)
Hal K. Dawson
Pedestrian at Burglary Site (uncredited)
Earl Dwire
Surgeon (uncredited)
Frank Fanning
Fingerprint Expert (uncredited)
J.C. Fowler
Gambler (uncredited)
Edward Gargan
Police Sergeant (uncredited)
William Haade
Mrs. Updyke's Watchman (uncredited)
Winifred Harris
Mrs. Ganswoort - Patient (uncredited)
John Harron
Alarm Company Operator (uncredited)
Thomas E. Jackson
Inspector Connors (uncredited)
Mike Lally
Gambler (uncredited)
Vera Lewis
Juror (uncredited)
Al Lloyd
Sequin Hotel Desk Clerk (uncredited)
Bruce Mitchell
Bailiff (uncredited)
Edmund Mortimer
Guest (uncredited)
Jack Mower
Second Detective (uncredited)
Bob Reeves
Policeman (uncredited)
Frank Reicher
Professor O.J. Ludwig (uncredited)
Ky Robinson
Third Detective (uncredited)
Ruth Robinson
Updyke's Guest (uncredited)
Eric Stanley
Dr. Ames (uncredited)
Larry Steers
Guest (uncredited)
Amzie Strickland
Patient (uncredited)
Libby Taylor
Mrs. Jefferson - Jo's Maid (uncredited)
Arthur Thalasso
Forensic (uncredited)
Monte Vandergrift
First Detective - with Earphones (uncredited)
Joyce Williams
Patricia (uncredited)
Lawrence A. Williams
Juror (uncredited)
William Worthington
Guest (uncredited)
