| Person | Type | Job | Role(s) |
|---|---|---|---|
 Aldo Ricci | Crew | Crew | Cinematography |
Enzo Alabiso | Crew | Editing | Editor |
Giovanni Scolaro | Crew | Writing | Story, Screenplay |
 Joaquín Romero Marchent | Crew | Writing | Screenplay, Story |
Luis Argüello | Crew | Art | Production Design |
Marcello Giombini | Crew | Sound | Music |
 Rafael Romero Marchent | Crew | Directing | Director |
Berto Solino | Crew | Production | Producer |
Ana Romero Marchent | Crew | Editing | Editor |
Juana Culell | Crew | Costume & Make-Up | Makeup Artist |
 Alfonso Rojas | Cast | Actor | Coronel (uncredited) |
 Anthony Steffen | Cast | Actor | Lieutenant 'Garringo' Harris |
 Antonio Molino Rojo | Cast | Actor | Harriman |
 Barta Barri | Cast | Actor | Wilson (as Barta Barry) |
 Beni Deus | Cast | Actor | Padre de Johnny (uncredited) |
 Carlos Romero Marchent | Cast | Actor | Bob (uncredited) |
 Frank Braña | Cast | Actor | Bill |
 Guillermo Méndez | Cast | Actor | Johnny's Henchman |
 José Bódalo | Cast | Actor | Sheriff Klaus |
 José Moreno | Cast | Actor | Fred (uncredited) |
 Lorenzo Robledo | Cast | Actor | Deputy Sheriff Tom |
 Luis Induni | Cast | Actor | Dr. Grayson |
 Luis Marín | Cast | Actor | Pete, Bounty Hunter |
 Mario Morales | Cast | Telegrafista (uncredited) | |
 Peter Lee Lawrence | Cast | Actor | Johnny |
 Raf Baldassarre | Cast | Actor | Damon |
 Rafael Hernández | Cast | Actor | Militar (uncredited) |
 Rossana Rovere | Cast | Actress | Sarah |
 Solvi Stübing | Cast | Actress | Julie |
 Tito García | Cast | Actor | Ted (uncredited) |
 Ángel Menéndez | Cast | Coronel (uncredited) | |
 María Salerno | Cast | Actress | Nancy Grayson (as Marta Monterrey) |
 Xan das Bolas | Cast | Actor | Potter (uncredited) |
A. Lawrence | Cast | Johnny de niño (uncredited) | |
Maribel del Pozo | Cast | Julie de niña (uncredited) | |
Santiago Santos | Cast | Amigo de Sam y Bill (uncredited) | |
| Person | Type | Job | Role(s) |
