She is best known for her roles in Televisa's telenovelas like La usurpadora as Veronica Soriano (1998), Rosalinda as Lucy Pérez Romero (1999), Mariana de la Noche as Caridad "Chachi" Montenegro (2003), Contra viento y marea as Sandra Serrano Rudell (2005), Bajo las riendas del amor as Montserrat Linares (2007) and for her role as the protagonist in Telemundo's successful telenovela Corazón Valiente as Angela Valdez (2012).

She is the daughter of dentists Hugo Fonseca and Guillermina Castellanos.

She started her acting career by performing in a local television show.[which?]

After winning the award in the "El rostro de El Heraldo de México" competition in 1997,[1] she participated in the soap opera La usurpadora.

[citation needed] She has joined Telemundo network and she successfully played her main protagonist role in Corazón Valiente, alongside Ximena Duque, Aylin Mujica and José Luis Reséndez.