Harry Guardino
Johnny Torrio
Sylvester Stallone
Frank Nitti
Susan Blakely
Iris Crawford
John Cassavetes
Frankie Yale
Frank Campanella
Big Jim Colosimo
John Orchard
Dion O'Banion
Carmen Argenziano
Jack McGurn
George Chandler
Robert E. Crowe
John Davis Chandler
Hymie Weiss
Royal Dano
Anton J. Cermak
Joe De Nicola
Charles Fischetti
Angelo Grisanti
Angelo Genna
Robert Phillips
Bugs Moran
Martin Kove
Pete Gusenberg
Mario Gallo
Giuseppe Aiello
George Milan
William H. Thompson
Tony Giorgio
Antonio Lombardo
Don Pulford
William Cooper
Eugenia Stewart
Miss Detwiller
Redmond Gleeson
N.Y. Cop #2
John Finnegan
N.Y. Police Lt.
Laurence Hagen
Samuel Ettelson
James V. Christy
Thomas Bronk
Ralph James
Judge J.H. Wilkerson
John Howard
Warden J. Johnston
John C. Broderick
Maitre d'
James R. Sweeney
Prison Doctor
George Engelson
Torrio's Doctor
Deborah Klose
Female Reporter
John Favorite
First Reporter
John Armond
Second Reporter
Jack O'Leary
Pool Hall Owner
Ben Marino
Frank Gusenberg
Vincent Di Paolo
Mob Soldier (uncredited)
