Production:

poster from Ultimate Gangster & Crime Film Site

James Cagney as Tom Powers from Images

• Directed by William A. Wellman
  
• Written by John Bright and Kubec Glasmon (from the story "Beer and Blood" bought by Warner Bros. Dec. 1, 1930)
  
• Cinematography by Dev Jennings
  
• Costume Design by Earl Luick, Edward Stevenson
  
• Film Editing by Ed McCormick, Edward M. McDermott
  
• Musical direction by David Mendoza
  
• Art direction by Max Parker
  

Cast:

• James Cagney as Tom Powers (based on Hymie Weiss)
  
• Edward Woods as Matt Doyle
  
• Jean Harlow as Gwen Allen
  
• Joan Blondell as Mamie
  
• Beryl Mercer as Ma Powers
  
• Donald Cook as Mike Powers
  
• Mae Clarke as Kitty
  
• Mia Marvin as Jane
  
• Leslie Fenton as Nails Nathan (based on Samuel "Nails" Morton)
  
• Robert Emmett O'Connor as Paddy Ryan
  
• Murray Kinnell as Putty Nose
  
• Rita Flynn as Molly Doyle
  

• Johnnie Dangerously (1984) with Michael Keaton as Johnny, Joe Piscopo as Vermin, Maureen Stapleton as Mom

• Menace II Society (1993) with Tyrin Turner as Caine Lawson [see review by Roger Ebert]

Resources:

• Credits from the IMDB for the title Public Enemy
• Cultural References in the film
  
• Ultimate Gangster & Crime Film Site from Mike McKiernan
• Jimmy Cagney links from fansites
  
• Warner Bros studio page
  
• Scarface 1983 with Al Pacino as Tony Montana - see production notes
• Godfather trilogy
• other films of the gangster genre
• Depression Era films of Hollywood's Conservative Age
• Origin of the FBI and Chicago Crime Commission