Catherine bears a strong resemblance to Silvia, daughter of a millionaire who has escaped with a bullfighter. A group of ruffians who intends to defraud the Silvia's father used to Catalina for their plans.
| Directing | Pedro Lazaga Sabater | Director |
| Writing | Pedro Lazaga Sabater | Screenplay |
| Writing | José María Palacio | Screenplay |
| Writing | José Luis Colina | Story |
| Production | Eduardo Ducay | Executive Producer |
| Sound | Antón García Abril | Music |
| Camera | Juan Julio Baena | Director of Photography |
| Editing | Alfonso Santacana | Editor |
| Art | Francisco Canet | Set Decoration |
| Costume & Make-Up | Nuria Paradela | Hairstylist |
| Costume & Make-Up | Ricardo Vázquez | Makeup Artist |
| Costume & Make-Up | Vicente Vázquez | Assistant Makeup Artist |
| Production | Manuel Torres | Production Manager |
| Directing | Francisco Yllera | Assistant Director |
| Art | Antonio Cabero | Construction Coordinator |
| Art | Ángel Quintana | Property Master |
| Art | Enrique Vidal | Assistant Set Decoration |
| Sound | Francisco Mansó | Sound |
| Camera | Manuel Pulido | Still Photographer |
| Camera | Félix Mirón | Camera Operator |
| Camera | Jorge Herrero | Assistant Camera |
| Costume & Make-Up | Maruja Hernáiz | Costumer |
| Costume & Make-Up | Herrero y Ollero | Costume Designer |
| Editing | Alicia Castillo | Assistant Editor |
| Directing | José María Palacio | Script Supervisor |
| Production | Faustino Ocaña | Production Assistant |