Charles Bronson

Character: Joe Valachi

Lino Ventura

Character: Vito Genovese

Jill Ireland

Character: Maria Reina Valachi

Walter Chiari

Character: Dominick Petrilli, aka "Gap"

Joseph Wiseman

Character: Salvatore Maranzano

Gerald S. O'Loughlin

Character: Ryan, federal agent

Amedeo Nazzari

Character: Gaetano Reina

Fausto Tozzi

Character: Albert Anastasia

Pupella Maggio

Character: Letizia Reina

Angelo Infanti

Character: Lucky Luciano

Guido Leontini

Character: Tony Bender

María Baxa

Character: Donna Petrillo

Mario Pilar

Character: Salierno

Franco Borelli

Character: Buster

Alessandro Sperli

Character: Giuseppe 'Joe the Boss' Masseria

Natasha Chevelev

Character: Jane

Anthony Dawson

Character: Federal Investigator

Fred Valleca

Character: Buck

John Alarimo

Character: Steven Ferrigno (uncredited)

Calogero Azzaretto

Character: Man of the clan (uncredited)

Joe Don Baker

Character: Irish member of Valachi gang (uncredited)

Steve Belloise

Character: Winnie (uncredited)

Angelo Boscariol

Character: Gangster (uncredited)

Nestore Cavaricci

Character: Prisoner with Valachi (uncredited)

Giacomo De Michelis

Character: Augie (uncredited)

Bruno Di Luia

Character: Luciano's Henchman (uncredited)

Arny Freeman

Character: Warden (uncredited)

Alfonso Giganti

Character: Wedding party guest (uncredited)

Ron Gilbert

Character: Prison Guard (uncredited)

Frank Gio

Character: Frank (uncredited)

Syl Lamont

Character: Commander of Fort Monmouth (uncredited)

Imelde Marani

Character: Donna Petrillo's friend (uncredited)

Isabelle Marchall

Character: Mary-Lou (uncredited)

Jason McCallum

Character: Donald Valachi (uncredited)

Sabine Sun

Character: Jane (uncredited)

Robert Trout

Character: Self (uncredited)

Franco Ressel

Character: (uncredited)

Richard Dunne

Character: Judge (uncredited)