Ben Gazzara
Al Capone
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
Peter Maloney
Jake Guzik
Dick Miller
Joe Pryor
Robert Phillips
Bugs Moran
Martin Kove
Pete Gusenberg
Mario Gallo
Giuseppe Aiello
Russ Marin
Joseph Stenson
Tony Giorgio
Antonio Lombardo
John Martino
Tony Amatto
Don McGovern
N.Y. Cop #1
Redmond Gleeson
N.Y. Cop #2
John Finnegan
N.Y. Police Lt.
Vincent Barbi
Solly
James V. Christy
Thomas Bronk
Ralph James
Judge J.H. Wilkerson
Carmen Filpi
Waiter
John Howard
Warden J. Johnston
Beach Dickerson
Joe Kepka
Vincent Di Paolo
Mob Soldier (uncredited)
Joe De Nicola
Charles Fischetti
Angelo Grisanti
Angelo Genna
George Milan
William H. Thompson
Bert Conway
Frank Loesch
Don Pulford
William Cooper
Pamela Toll
Mrs. Atkins
Eugenia Stewart
Miss Detwiller
Laurence Hagen
Samuel Ettelson
Tom Cook
Sam Volenta
Tina Scala
Mrs. Torrio
Jack Ackerman
Adam Heyer
Jim Galante
John May
John C. Broderick
Maitre d'
Chuck Traynor
Senator
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
