Patric Knowles
— Lance O'Leary
Ann Sheridan
— Sara Keate
Eric Stanley
— Bentley
John Ridgely
— Jim Warren
Rosella Towne
— Maida Day
Jean Benedict
— Carol Lethany
Charles Trowbridge
— Dr. Bahman
Cliff Clark
— Inspector Foley
Harland Tucker
— Dr. Arthur Lethany
Edward Raquello
— Dr. Fred Harker
Vickie Lester
— Nurse Taylor
Edward McWade
— Frank Warren
Ralph Sanford
— Detective Donahue
Frank Orth
— Joe Higgins - Night Watchman
Greta Meyer
— Hilda - Lethany Housekeeper
Walter Young
— Coroner
Glen Cavender
— Man with Sprinkler Hose (uncredited)
Loia Cheaney
— Jean the Night Nurse (uncredited)
Mary Doyle
— Nurse (uncredited)
Ralph Dunn
— Eldar Hotel Clerk (uncredited)
John Harron
— Thatcher Hospital Orderly (uncredited)
George Hickman
— Newsboy #2 (uncredited)
Stuart Holmes
— Man Leaving Hospital (uncredited)
Carole Landis
— Woman on Stairs (uncredited)
Jack Mower
— Policeman Picking Up Radium at End (uncredited)
George Offerman, Jr.
— Newsboy #1 / Newsboy in Montage (uncredited)
John J. Richardson
— Cabbie (uncredited)