Charles Bronson character Joe Valachi
Lino Ventura character Vito Genovese
Jill Ireland character Maria Reina Valachi
Walter Chiari character Gap
Joseph Wiseman character Salvatore Maranzano
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
Gerald S. O'Loughlin character Ryan
María Baxa character Donna
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 Uomo della cosca (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's Lover (uncredited)
Isabelle Marchall character Mary-Lou (uncredited)
Jason McCallum character Donald Valachi (uncredited)
Robert Trout character Himself (uncredited)
Sabine Sun character Jane (uncredited)