Sfida a Rio Bravo/Credits
From The Spaghetti Western Database
- Director: Tulio Demicheli
- Written by Tulio Demicheli (also story), Guy Lionel, Gene Luotto (screenplay), Gene Luotto (story), Chen Morrison (story), Giovanni Simonelli, Natividad Zaro (also story) and Italo Zingarelli
- Producer: Italo Zingarelli (as Ike Zingarmann), Natividad Zaro
- Music: Angelo Francesco Lavagnino
- Musical Director: Angelo Francesco Lavagnino
- Cinematography by Mario Capriotti and Guglielmo Mancori [Eastmancolor, Techniscope]
- Film editor: Roberto Cinquini
- Art Directors: Luis Argüello, A. Dea and Angelo de Amicio
- Set Decoration by Alessandro Sarandrea
- Credited cast (Spanish)
Massimo Serato
as Massimo Seratto
- Uncredited actors
- Unidentified actors
Original Notes by Page Creator
- Guy Madison is Wyatt Earp/Laramie
- Fernando Sancho is Pancho Bogan
- Madeleine LeBeau is Jennie Lee
- Gérard Tichy is Zack 'Snake' Williams
- Carolyn Davys is Clementine Hewitt
- Beni Deus is Burton “Burt” Spencer Carroll
- Olivier Hussenot is Judge
- Massimo Serato is Sheriff Leo/Leonardo Wynn
- Xan das Bolas is Mexican peon
- Alvaro de Luna is Williams henchman
- Juan Maján
- Evar Maran (as E. Maran)
- Dario Michaelis
- Hollis Morrow (as H. Morrow)
- Claudio Scarchilli
- Maria Lorente (as Pilar Vela)
- Natividad Zaro
- Ariz-Navarreta