Had a 4-years-relationship with Joan Sebástian, her co-star in the soap opera Tu y yo (1996). They have a son, Marcos Julián.
Changed her stage last name to Guardia because Televisa had an actress named Maribel Fernández under contract.
Is one of the most advertised and surrounded woman by the Mexican Media. They call her 'La Bella' (the beauty).
Was Miss Costa Rica in 1978.
Got a scholarship from Televisa in order to study drama at Sergio Bustamante's Academy.