Edward G. Robinson

Character: Dr. T.S. Clitterhouse

Claire Trevor

Character: Jo Keller

Humphrey Bogart

Character: 'Rocks' Valentine

Allen Jenkins

Character: Okay

Donald Crisp

Character: Police Inspector Lewis Lane

Gale Page

Character: Nurse Randolph

Henry O'Neill

Character: Judge

John Litel

Character: Mr. Monroe, Prosecuting Attorney

Thurston Hall

Character: Grant

Ward Bond

Character: Tug

Ronald Reagan

Character: Radio Announcer (voice) (uncredited)

Mary Field

Character: Millie - Mrs. Updyke's Maid (uncredited)

Maxie Rosenbloom

Character: Butch

Vladimir Sokoloff

Character: Popus

Bert Hanlon

Character: Pat

Curt Bois

Character: Rabbit

Billy Wayne

Character: Candy

Robert Homans

Character: Lt. Johnson

Irving Bacon

Character: Foreman of Jury

John Alban

Character: Guest (uncredited)

Frank Anthony

Character: Gambler in Room 920 (uncredited)

Wade Boteler

Character: Captain MacLevy (uncredited)

Sidney Bracey

Character: Police Chemist (uncredited)

John Breen

Character: Spectator at Robbery (uncredited)

Georgia Caine

Character: Mrs. Frederick R. Updyke (uncredited)

Romaine Callender

Character: Roberts - Updyke's Butler (uncredited)

Glen Cavender

Character: Alarm Company Clerk (uncredited)

Loia Cheaney

Character: Nurse Conner (uncredited)

Bud Cokes

Character: Courtroom Spectator (uncredited)

Hal Craig

Character: Detective Getting Rocks' Fingerprints (uncredited)

Ray Dawe

Character: Policeman (uncredited)

Hal K. Dawson

Character: Pedestrian at Burglary Site (uncredited)

Earl Dwire

Character: Surgeon (uncredited)

Frank Fanning

Character: Fingerprint Expert (uncredited)

J.C. Fowler

Character: Gambler (uncredited)

Edward Gargan

Character: Police Sergeant (uncredited)

William Haade

Character: Mrs. Updyke's Watchman (uncredited)

Winifred Harris

Character: Mrs. Ganswoort - Patient (uncredited)

John Harron

Character: Alarm Company Operator (uncredited)

Thomas E. Jackson

Character: Inspector Connors (uncredited)

Mike Lally

Character: Gambler (uncredited)

Vera Lewis

Character: Juror (uncredited)

Al Lloyd

Character: Sequin Hotel Desk Clerk (uncredited)

Bruce Mitchell

Character: Bailiff (uncredited)

Edmund Mortimer

Character: Guest (uncredited)

Jack Mower

Character: Second Detective (uncredited)

Bob Reeves

Character: Policeman (uncredited)

Frank Reicher

Character: Professor O.J. Ludwig (uncredited)

Ky Robinson

Character: Third Detective (uncredited)

Ruth Robinson

Character: Updyke's Guest (uncredited)

Eric Stanley

Character: Dr. Ames (uncredited)

Larry Steers

Character: Guest (uncredited)

Amzie Strickland

Character: Patient (uncredited)

Libby Taylor

Character: Mrs. Jefferson - Jo's Maid (uncredited)

Arthur Thalasso

Character: Forensic (uncredited)

Monte Vandergrift

Character: First Detective - with Earphones (uncredited)

Joyce Williams

Character: Patricia (uncredited)

Lawrence A. Williams

Character: Juror (uncredited)

William Worthington

Character: Guest (uncredited)