Name	Known for
Marlon Brando Don Vito Corleone Don Vito Corleone See fewer	Apocalypse Now (1979)
Al Pacino Don Michael Corleone Don Michael Corleone See fewer	Serpico (1973)
Robert Duvall Tom Hagen Tom Hagen See fewer	The Apostle (1997)
James Caan Sonny Corleone Sonny Corleone See fewer	Thief (1981)
Richard S. Castellano Peter Clemenza Peter Clemenza See fewer	The Godfather (1972)
Diane Keaton Kay Adams Corleone Kay Adams Corleone See fewer	Annie Hall (1977)
Robert De Niro Young Vito Corleone Young Vito Corleone See fewer	Cape Fear (1991)
Talia Shire Connie Corleone Rizzi Connie Corleone Rizzi See fewer	Rocky (1976)
Sterling Hayden Capt. McCluskey Capt. McCluskey See fewer	Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb (1964)
John Marley Jack Woltz Jack Woltz See fewer	Love Story (1970)
Richard Conte Don Emilio Barzini Don Emilio Barzini See fewer	The Godfather (1972)
Lee Strasberg Hyman Roth Hyman Roth See fewer	The Godfather Part II (1974)
John Cazale Fredo Corleone Fredo Corleone See fewer	Dog Day Afternoon (1975)
Morgana King Mama Corleone Mama Corleone See fewer	The Godfather (1972)
Richard Bright Al Neri Al Neri See fewer	The Godfather Part III (1990)
Michael V. Gazzo Frankie Pentangeli Frankie Pentangeli See fewer	The Godfather Part II (1974)
Tom Rosqui Rocco Lampone Rocco Lampone See fewer	The Godfather Part II (1974)
Marianna Hill Deanna Corleone (as Mariana Hill) Deanna Corleone (as Mariana Hill) See fewer	High Plains Drifter (1973)
Troy Donahue Merle Johnson Merle Johnson See fewer	A Summer Place (1959)
Al Martino Johnny Fontane Johnny Fontane See fewer	The Godfather (1972)
Rudy Bond Don Carmine Cuneo Don Carmine Cuneo See fewer	A Streetcar Named Desire (1951)
Julie Gregg Sandra Corleone Sandra Corleone See fewer	The Godfather (1972)
Tere Livrano Theresa Hagen Theresa Hagen See fewer	The Godfather Part II (1974)
Joe Spinell Willie Cicci Willie Cicci See fewer	Taxi Driver (1976)
Simonetta Stefanelli Apollonia Vitelli Corleone Apollonia Vitelli Corleone See fewer	The Godfather (1972)
Angelo Infanti Fabrizio Fabrizio See fewer	The Godfather (1972)
Corrado Gaipa Don Tommasino Don Tommasino See fewer	The Godfather (1972)
Franco Citti Calo Calo See fewer	The Godfather (1972)
Saro Urzì Vitelli Vitelli See fewer	Seduced and Abandoned (1964)
Paul Tulley Gardner Shaw Gardner Shaw See fewer	Real Genius (1985)