Humphrey Bogart as Dr. Maurice Xavier

Rosemary Lane as Joan Vance

Wayne Morris as Walter Wichita Garrett

Dennis Morgan as Dr. Rhodes

John Litel as Dr. Flegg

Lya Lys as Angela

Huntz Hall as Pinky

Charles C. Wilson as Det. Kincaid

Vera Lewis as Miss Sweetman

Howard Hickman as Chairman

Olin Howland as Undertaker

Cliff Saum as Detective Sergeant Moran

Creighton Hale as Hotel Manager

John Ridgely as Rodgers

Joseph Crehan as Editor

Glenn Langan as Interne

William Hopper as Interne

Nat Carr as Reporter (uncredited)

Loia Cheaney as Nurse (uncredited)

Eddie Graham as Hospital Attendant (uncredited)

John Harron as Reporter (uncredited)

Mike Lally as Taxi Driver (uncredited)

Frank Mayo as Attorney (uncredited)

John 'Skins' Miller as Newspaper Vendor (uncredited)

Jack Mower as Policeman Guarding Rodgers' Room (uncredited)

Paul Panzer as Hospital Attendant (uncredited)

Frank Pharr as Andy - the Night Editor (uncredited)

Gwen Seager as Miss Lawrence (uncredited)

Claude Wisberg as Office Boy (uncredited)

Ian Wolfe as Cemetery Caretaker (uncredited)