as Don Vito Corleone
as Michael Corleone
as Tom Hagen
as Santino "Sonny" Corleone
as Peter Clemenza
as Kay Adams-Corleone
as Young Vito Corleone
as Constanzia "Connie" Corleone-Rizzi
as Capt. Mark McCluskey
as Jack Woltz
as Don Emilio Barzini
as Hyman Roth
as Don Fanucci
as Frederico "Fredo" Corleone
as Virgil "The Turk" Sollozzo
as Carmela "Mama" Corleone
as Al Neri
as Frank Pentangeli
as Sen. Patrick Geary
as Rocco Lampone
as Deanna Dunn-Corleone
as Merle Johnson
as Johnny Fontane
as Carmine Cuneo
as Sandrinella "Sandra" Corleone
as Theresa Hagen
as Johnny Ola
as William "Willie" Cicci
as Vito's Mother
as Don Tommasino
as Apollonia Vitelli-Corleone
as Fabrizio
as Don Tmmasino
as Calò
as Vitelli
as Salvatore "Sal" Tessio (uncredited)
as Luca Brasi (uncredited)
as Paulie Gatto (uncredited)
as Amerigo Bonasera (uncredited)
as Moe Greene (uncredited)
as Bruno Tattaglia (uncredited)
as Philip Tattaglia (uncredited)