Cast

• Robert De Niro David 'Noodles' Aaronson
• James Woods Maximilian 'Max' Bercovicz
• Elizabeth McGovern Deborah Gelly
• Tuesday Weld Carol
• Treat Williams James Conway O'Donnell
• James Hayden Patrick 'Patsy' Goldberg
• Joe Pesci Frankie Minaldi
• Larry Rapp 'Fat' Moe Gelly
• Danny Aiello Police Chief Vincent Aiello
• William Forsythe Philip 'Cockeye' Stein
• Burt Young Joe
• Darlanne Fluegel Eve (as Darlanne Fleugel)
• Dutch Miller Van Linden
• Robert Harper Sharkey
• Richard Bright Chicken Joe
• Gerard Murphy Crowning
• Amy Ryder Peggy
• Olga Karlatos Woman in the Puppet Theatre
• Mario Brega Mandy
• Ray Dittrich Trigger
• Frank Gio Beefy
• Karen Shallo Lucy Aiello
• Angelo Florio Willie The Ape
• Scott Tiler Young Noodles
• Rusty Jacobs Young Max / David Bailey
• Brian Bloom Young Patsy
• Adrian Curran Young Cockeye
• Mike Monetti Young 'Fat' Moe
• Noah Moazezi Dominic
• James Russo Bugsy
• Frankie Caserta Bugsy's Gang Member #1
• Joey Marzella Bugsy's Gang Member #2
• Clem Caserta Al Capuano
• Frank Sisto Fred Capuano
• Jerry Strivelli Johnny Capuano
• Julie Cohen Young Peggy
• Marvin Scott Marvin Brentley
• Mike Gendel Irving Gold
• Paul Herman Monkey
• Ann Neville Girl in Coffin
• Joey Faye Adorable Old Man
• Linda Ipanema Nurse Thompson
• Tandy Cronyn Reporter #1 (as Tandy Cronin)
• Richard Zobel Reporter #2
• Baxter Harris Reporter #3
• Arnon Milchan Limousine Chauffeur
• Bruno Iannone Thug
• Marty Licata Cemetery Caretaker
• Marcia Jean Kurtz Max's Mother
• Estelle Harris Peggy's Mother
• Richard Foronjy Officer 'Fartface' Whitey (as Richard Foronji)
• Gerritt Debeer Drunk
• Jennifer Connelly Young Deborah
• Alexander Godfrey Newstand Proprietor
• Cliff Cudney Mounted Policeman #1
• Paul Farentino Mounted Policeman #2
• Bruce Bahrenburg Sgt. P. Halloran
• Mort Freeman Street Singer
• Sandra Solberg Friend of Young Deborah
• Jay Zeely Foreman
• Massimo Liti Macrò
• Salvatore Billa One of Beefy's Thugs (uncredited)
• Matteo Cafiso Boy in Park (uncredited)
• Nelson Camp Newspaper Salesman (uncredited)
• Scott Coffey Teenager (uncredited)
• Francesca Leone David Bailey's Girlfriend (uncredited)
• Chuck Low Deborah Gelly's father (uncredited)

Writers

• Harry Grey
• Leonardo Benvenuti
• Piero De Bernardi
• Enrico Medioli
• Franco Arcalli
• Franco Ferrini
• Sergio Leone
• Stuart Kaminsky
• Ernesto Gastaldi

Producers

• Claudio Mancini
• Arnon Milchan