cast
- Rod Steiger
- Al Capone
- Fay Spain
- Maureen
- James Gregory
- Schaefer
- Martin Balsam
- Kelly
- Nehemiah Persoff
- Johnny Torrio
- Murvyn Vye
- Bugs Moran
- Joe de Santis
- Big Jim Colosimo
- Lewis Charles
- Hymie Weiss
- Robert Gist
- O'Banion
- Sandy Kenyon
- Bones Corelli
- Raymond Bailey
- Mr. Brancato
- Al Ruscio
- Tony Genaro
- Louis Quinn
- Joe Lorenzo
- Ron Soble
- Scalist
- Steve Gravers
- Anselmo
- Peter Dane
- Pete Flannery
- Sam Scar
- Louie
- Jack Orrison
- Police clerk
- Raiken Ben Ari
- Ben Hoffman
- John Mitchum
- Photographer
- Roy Jenson
- Customer
- Clegg Hoyt
- Lefty
crew
- Richard Wilson
- Director
- John Burrows
- Producer
- Leonard J. Ackerman
- Producer
- Henry Greenberg
- Screenwriter
- Malvin Wald
- Screenwriter
- Lucien Ballard
- Cinematographer
- David Raksin
- Composer (Music Score)
- Walter A. Hannemann
- Editor
- Hilyard M. Brown
- Art Director
