Edward G. Robinson

as Caesar Enrico 'Rico' Bandello aka 'Little Caesar'

Douglas Fairbanks Jr.

as Joe Massara

Glenda Farrell

as Olga Stassoff

William Collier Jr.

as Tony Passa

Sidney Blackmer

as Big Boy

Ralph Ince

as Pete Montana

Thomas E. Jackson

as Sgt. Flaherty

Stanley Fields

as Sam Vettori