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