Night Key

David Mallory

Jim Travers

Joan Mallory

John Baron aka The Kid

Petty Louie

Steven Ranger

Mike Callahan

Fingers

Carl - gang engineer

Lawyer Kruger

Sam Adams - Company Engineer (uncredited)

Waitress (uncredited)

Mr. Spinelli (uncredited)

Mrs. Spinelli (uncredited)

Police Capt. Wallace (uncredited)

Policeman (uncredited)