Don Vito Corleone — Anthony Quinn

Michael Corleone — Martin Sheen

Santino “Sonny” Corleone — Robert De Niro

Peter Clemenza — Ernest Borgnine

Tom Hagen — Bruce Dern

Capt. McCluskey — Lee J. Cobb

Jack Woltz — Edward G. Robinson

Don Emilio Barzini — Ben Gazzara

Virgil “The Turk” Sollozzo — Franco Nero

Kay Adams — Jill Clayburgh

Sal Tessio — Frank De Kova

Connie Corleone Rizzi — Penny Marshall

Carlo Rizzi — Sylvester Stallone

Fredo Corleone — Austin Pendleton

Don Carmine Cuneo — Robert Alda

Johnny Fontane — Frankie Avalon

Mama Corleone — Alida Valli

Luca Brasi — Timothy Carey

Paulie Gatto — Robert Viharo

Bonasera — Frank Puglia

Al Neri — Richard Romanus

Moe Greene — William Devane

Bruno Tattaglia — Lou Antonio

Nazorine — Pieri Lulli

Theresa Hagen — Rutanya Alda

Don Philip Tattaglia — Frank Campanella

Lucy Mancini — Susan Lucci

Sandra Corleone — Victoria Vetri

Mrs. Clemenza — Donna Rancourt

Apollonia Vetilli Corleone — Olivia Hussey

Fabrizio — George Eastman

Don Tomasino — Joseph Callelia

Calo — Antonio Sabato

Vitelli — Nino Manfredi

Don Victor Stracci — Cesare Danova

Don Zalucci — John Beradino

Rocco Lampone — Anthony Zerbe

Willi Chicci — Burt Young

Enzo the Baker — Frank Sivero