The Relentless Four
| MPAA Rating: | NR |
| Genre: | Western |
| Country: | Italy, Spain |
| Produced By: | Ricardo Sanz, Adriano Merkel |
| Directed By: | Primo Zeglio |
| Written By: | Manuel Sebares, Federico De Urrutia, Marcello Fondato, Primo Zeglio, Manuel Marcello De Caso |
| Cast: | Cris Huerta, Adam West, Luis Induni, John Bartha, José Jaspe, José Canalejas, Lorenzo Robledo, Giovanni Cianfriglia, Roberto Camardiel, Yelena Samarina, Raf Baldassarre, Paola Barbara, Fernando Bilbao, Claudio Undari, Elisa Mainardi, Francisco Sanz, Dina Loy, Giovanni Petti, Claudio Ruffini, Howard Ross, Jaime Blanch |
| In Theaters: | Dec 03, 1965 |
| Runtime: | 1 hour 31 minutes |
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