Edward G. Robinson
Role: Caesar Enrico 'Rico' Bandello aka 'Little Caesar'
Douglas Fairbanks Jr.
Role: Joe Massara
Glenda Farrell
Role: Olga Stassoff
William Collier Jr.
Role: Tony Passa
Sidney Blackmer
Role: Big Boy
Ralph Ince
Role: Pete Montana
Thomas E. Jackson
Role: Sergeant Flaherty
Stanley Fields
Role: Sam Vettori
Maurice Black
Role: Little Arnie Lorch
George E. Stone
Role: Otero
Armand Kaliz
Role: De Voss
Nicholas Bela
Role: Ritz Colonna
Ernie Adams
Role: Cashier (uncredited)
Elmer Ballard
Role: Undetermined Role (uncredited)
Ferike Boros
Role: Mrs. Passa (uncredited)
Kernan Cripps
Role: Detective (uncredited)
George Daly
Role: Machine-Gunner (uncredited)
Adolph Faylauer
Role: New Year's Celebrant (uncredited)
Ben Hendricks Jr.
Role: Kid Bean (uncredited)
Al Hill
Role: Rico's 'Butler' (uncredited)
Lucille La Verne
Role: Ma Magdalena (uncredited)
Gladys Lloyd
Role: McClure Guest (uncredited)
Noel Madison
Role: Killer Peppi (uncredited)
Tom McGuire
Role: Detective on Phone (uncredited)
Louis Natheaux
Role: Hood (uncredited)
Henry Sedley
Role: Scabby (uncredited)
Gay Sheridan
Role: Nightclub Patron (uncredited)
Larry Steers
Role: McClure Guest (uncredited)
Landers Stevens
Role: Alvin McClure - Crime Commissioner (uncredited)
Mike Tellegen
Role: Bodyguard (uncredited)
Bob Walker
Role: Lorch Henchman (uncredited)