Le Petit César

Edward G. Robinson

— Caesar Enrico 'Rico' Bandello aka 'Little Caesar'

Douglas Fairbanks Jr.

— Joe Massara

Glenda Farrell

— Olga Stassoff

William Collier Jr.

— Tony Passa

Sidney Blackmer

— Big Boy

Ralph Ince

— Pete Montana

Thomas E. Jackson

— Sgt. Flaherty

Stanley Fields

— Sam Vettori

Maurice Black

— Little Arnie Lorch

George E. Stone

— Otero

Armand Kaliz

— De Voss

Nicholas Bela

— Ritz Colonna

Ernie Adams

— Cashier (uncredited)

Elmer Ballard

— Bat Carilla (uncredited)

Ferike Boros

— Mrs. Passa (uncredited)

Kernan Cripps

— Detective (uncredited)

George Daly

— Machine-Gunner (uncredited)

Adolph Faylauer

— New Year's Celebrant (uncredited)

Ben Hendricks Jr.

— Kid Bean (uncredited)

Al Hill

— Rico's 'Butler' (uncredited)

Lucille La Verne

— Ma Magdalena (uncredited)

Gladys Lloyd

— McClure Guest (uncredited)

Noel Madison

— Killer Peppi (uncredited)

Tom McGuire

— Detective on Phone (uncredited)

Louis Natheaux

— Hood (uncredited)

William H. O'Brien

— Waiter (uncredited)

Henry Sedley

— Scabby (uncredited)

Gay Sheridan

— Nightclub Patron (uncredited)

Larry Steers

— McClure Guest (uncredited)

Landers Stevens

— Alvin McClure - Crime Commissioner (uncredited)