Sergio Leone : Director (Directing)
Arrigo Colombo : Producer (Production)
Giorgio Papi : Producer (Production)
Ennio Morricone : Original Music Composer (Sound)
Federico G. Larraya : Director of Photography (Camera)
Roberto Cinquini : Editor (Editing)
Alfonso Santacana : Editor (Editing)
Massimo Dallamano : Director of Photography (Camera)
Carlo Simi : Art Direction (Art)
Sigfrido Burman : Set Decoration (Art)
Francisco Rodríguez Asensio : Set Decoration (Art)
Carlo Simi : Set Decoration (Art)
Dolores Clavel : Hairstylist (Costume & Make-Up)
Alberto Gutiérrez : Makeup Artist (Costume & Make-Up)
Sam Watkins : Makeup Artist (Costume & Make-Up)
Elio Pacella : Sound (Sound)
Jaime Comas Gil : Production Manager (Production)
Ramón Crespo : Production Manager (Production)
Franco Palaggi : Production Manager (Production)
Günter Raguse : Production Manager (Production)
Franco Giraldi : Assistant Director (Directing)
Julio Sempere : Assistant Director (Directing)
Mario Caiano : Assistant Director (Directing)
Tonino Valerii : Assistant Director (Directing)
Adriano Bolzoni : Screenstory (Writing)
Mark Lowell : Dialogue (Writing)
Víctor Andrés Catena : Screenstory (Writing)
Sergio Leone : Screenstory (Writing)
Víctor Andrés Catena : Screenplay (Writing)
Jaime Comas Gil : Screenplay (Writing)
Sergio Leone : Screenplay (Writing)
José Luis Pérez : Assistant Makeup Artist (Costume & Make-Up)
José María Sánchez : Makeup Department Head (Costume & Make-Up)
Fernando Rossi : Unit Manager (Production)
Anselmo Zabala : Unit Production Manager (Production)
Franco Giraldi : Second Unit Director (Directing)
Adolfo Cofiño : Assistant Set Decoration (Art)
Luis Ocaña : Property Master (Art)
Rafael Pérez Murcia : Assistant Set Decoration (Art)
Manuel Baquero : Special Effects (Crew)
Giovanni Corridori : Special Effects (Crew)
Benito Stefanelli : Stunt Coordinator (Crew)
Benito Stefanelli : Stunts (Crew)
Nosher Powell : Stunts (Crew)
William R. Thompkins : Stunts (Crew)
Stelvio Massi : Camera Operator (Camera)
Eduardo Noé : Second Assistant Camera (Camera)
Domenico Parrello : Second Assistant Camera (Camera)
Ramón Sempere : First Assistant Camera (Camera)
José María Sánchez : Camera Operator (Camera)
Julio Wizuete : Still Photographer (Camera)
Igino Lardani : Animation (Visual Effects)
María Casado : Wardrobe Designer (Costume & Make-Up)
Carlo Simi : Costumer (Costume & Make-Up)
Alicia Castillo : Assistant Editor (Editing)
Ennio Morricone : Conductor (Sound)
Alessandro Alessandroni : Music Arranger (Sound)
Alessandro Alessandroni : Musician (Sound)
Cantori Moderni Di Alessandroni : Theme Song Performance (Sound)
Michele Lacerenza : Musician (Sound)
Peter Tevis : Theme Song Performance (Sound)
María Antonia Puerta : Script Supervisor (Directing)
Tilde Watson : Script Supervisor (Directing)
Jerónimo Montoro : Production Assistant (Production)
Marta Pons : Production Assistant (Production)
Pietro Santini : Production Secretary (Production)
William R. Thompkins : Master at Arms (Crew)
William R. Thompkins : Technical Advisor (Crew)
Eugenio Villar : Production Assistant (Production)
Géneviève Hersent : Publicist (Production)
Fernando Di Leo : Screenplay (Writing)
Duccio Tessari : Screenplay (Writing)
Tonino Valerii : Screenplay (Writing)
Akira Kurosawa : Original Story (Writing)
Ryūzō Kikushima : Original Story (Writing)
Igino Lardani : Title Designer (Art)
Bruno Battisti D'Amario : Musician (Sound)
Pietro Santini : Associate Producer (Production)
Carlo Leva : Assistant Art Director (Art)
Romano Puppo : Stunts (Crew)
Antonio Montoya : Stunts (Crew)