Raúl Arévalo and Miguel García seem like a drop of water to another, but there the similarity ends. Raul is a famous singer, womanizer, despotic, cruel and millionaire. Instead Michael is an honest worker, cheerful and loving who enjoys the simple things forward. Fate will know them and life will never be the same for either.
Unfortunately the movie Si Fulano fuese Mengano is not yet available on HBO Max.
| Directing | Mariano Ozores | Director |
| Writing | Mariano Ozores | Screenplay |
| Writing | Mariano Ozores | Story |
| Writing | Antonio Ozores | Screenplay |
| Writing | Antonio Ozores | Story |
| Production | José Antonio Cascales | Executive Producer |
| Sound | Peret | Music |
| Crew | Vicente Minaya Ortega | Cinematography |
| Editing | Antonio Ramírez de Loaysa | Editor |
| Art | Adolfo Cofiño | Set Decoration |
| Art | Augusto Lega | Settings |
| Art | Félix Michelena | Settings |
| Costume & Make-Up | Fernando Pérez Sobrino | Hairstylist |
| Costume & Make-Up | Carmen Martín | Makeup Artist |
| Production | Rafael Vázquez Fajardo | Production Manager |
| Directing | Zacarías Urbiola | Assistant Director |
| Art | Ángel Huete | Property Master |
| Art | Antonio Luna | Property Master |
| Art | Antonio Mateos | Property Master |
| Art | Jesús Mateos | Property Master |
| Art | Ricardo Mengíbar | Property Master |
| Sound | Antonio Alonso | Sound Engineer |
| Crew | Tino Braña | Stunts |
| Crew | Vicente del Águila | Stunts |
| Crew | Julio Pimentel | Stunts |
| Crew | José Sacristán | Stunts |
| Camera | Fernando Guillot | Camera Operator |
| Camera | Manuel Martínez | Still Photographer |
| Editing | Federico Vich | Assistant Editor |
| Directing | Marisol de Villanueva | Script Supervisor |