Once Upon a Time in America (1984) — Crew
Director
- Sergio Leone
Costume & Make-Up
- Gabriella Pescucci — Costume Design
- Vincenzo Cardella — Hairstylist
- Maria Teresa Corridoni — Hairstylist
- Renata Magnanti — Hairstylist
- Randy Coronato — Hairstylist
- Randy Coronato — Makeup Artist
- Nilo Jacoponi — Makeup Artist
- Manlio Rocchetti — Makeup Artist
- Gino Zamprioli — Makeup Artist
- Henry R. Dwork — Makeup Artist
- Giancarlo De Leonardis — Hairstylist
- Helen P. Butler — Costumer
- Marina Frassine — Assistant Costume Designer
- Dougie Hawkes — Costumer
- Raffaella Leone — Assistant Costume Designer
Crew
- Gabe Videla — Special Effects
- Danilo Bollettini — Special Effects
- Giovanni Corridori — Special Effects
- Stuart Kaminsky — Additional Dialogue
- Jacques Godbout — Special Effects
- Louis Craig — Special Effects Assistant
- André Laperrière — Special Effects Technician
- Steve Lombardi — Special Effects Coordinator
- Olivier Zenenski — Special Effects Assistant
- Brian Campbell — Special Effects
- Benito Stefanelli — Stunt Coordinator
- James Giblin — Transportation Captain
- Patrick Hogan — Transportation Captain
- Bobby Marsh — Driver
- Bruce Bahrenburg — Unit Publicist
Sound
- Ennio Morricone — Original Music Composer
- Fabio Ancillai — Boom Operator
- Italo Cameracanna — Foley Artist
- Italo Cameracanna — Sound Effects Editor
- Fernando Caso — Sound Effects Editor
- Bruno Charier — Boom Operator
- Enzo Diliberto — Foley Artist
- Alvaro Gramigna — Foley Artist
- Fabio Palmisano — ADR Editor
- Daniele Quadroli — Sound Effects Editor
- Massimo Rinchiusi — ADR Editor
- Jean-Pierre Ruh — Sound Engineer
- Jacques Thomas-Gérard — Sound Re-Recording Mixer
- Luigi Porto — Sound Assistant
- Elliot Tyson — Sound Re-Recording Mixer
Production
- Claudio Mancini — Executive Producer
- Joy Todd — Casting
- Arnon Milchan — Producer
- Cis Corman — Casting
- Fred C. Caruso — Executive In Charge Of Production
- Mario Cotone — Production Supervisor
- Walter Massi — Unit Manager
- Ginette Hardy — Production Manager
- David Bailey — Extras Casting Assistant
- Sylvie Bourque — Extras Casting
- Flo Gallant — Extras Casting
- Pierre Laberge — Location Manager
- Robert Rothbard — Location Manager
- Attilio Viti — Location Manager
- Francesca Alatri — Production Secretary
Camera
- Carlo Tafani — Camera Operator
- Tonino Delli Colli — Director of Photography
- Steve Baker — Key Grip
- Sandro Battaglia — Assistant Camera
- Rodney Bauer — Grip
- Elio Bosi — Grip
- Augusto Diamanti — Key Grip
- Amato Gabotti — Grip
- Normand Guy — Key Grip
- Crescenzo G.P. Notarile — Assistant Camera
- Angelo Novi — Still Photographer
- Antonio Scaramuzza — Assistant Camera
- Kurt Thompson — Dolly Grip
- Eraldo Barbona — Grip
Lighting
- Romano Mancini — Lighting Technician
- Marco Contaldo — Electrician
- Walter Klymkiw — Gaffer
- Romano Mancini — Gaffer
- John Newby — Gaffer
- Carlo Vinciguerra — Gaffer
- Edward Cohen — Electrician
- Jean Courteau — Electrician
Writing
- Leonardo Benvenuti — Screenplay
- Piero De Bernardi — Screenplay
- Enrico Medioli — Screenplay
- Franco Arcalli — Screenplay
- Franco Ferrini — Screenplay
- Sergio Leone — Screenplay
- Harry Grey — Novel
Editing
- Nino Baragli — Editor
- Alessandro Baragli — Assistant Editor
- Patrizia Ceresani — Assistant Editor
- Ornella Chistolini — Assistant Editor
- Lizi Gelber — Assistant Editor
- Zach Staenberg — Additional Editor
- Elvira Tonini — First Assistant Editor
- Giorgio Venturoli — Assistant Editor
- J. Kathleen Gibson — First Assistant Editor
- Howard Heard — Assistant Editor
Art
- Giovanni Natalucci — Production Design
- Carlo Simi — Art Direction
- James T. Singelis — Art Direction
- Bruno Cesari — Set Decoration
- Osvaldo Desideri — Set Decoration
- Gretchen Rau — Set Decoration
- Ronald Fauteux — Props
- Gianni Fiumi — Property Master
- Alain Giguère — Painter
- Nello Giorgetti — Swing
- Steve Kirshoff — Props
- Walter Klymkiw — Head Carpenter
- Joey Litto — Construction Coordinator
- Tullio Lullo — Construction Coordinator
- Roberto Magagnini — Props
Directing
- Dennis T. Benatar — Assistant Director
- Philippe Landoulsi — Assistant Director
- Luca Morsella — Assistant Director
- Fabrizio Sergenti Castellani — First Assistant Director
- Amy Wells — Assistant Director