Mariana Sirvat Derderián Espinoza (born January 15, 1980)[1] is a Chilean actress and television presenter.

During her third year of study, Mariana found out that her professional vocation was the theatre and decided to take evening workshop, first in the municipalities of Vitacura and Las Condes, and then in the Academy of Fernando González.

At the end of 2004, Derderián and a classmate showed up at an audition at Canal 13, where she got selected to participate in the TV series Brujas where she interpreted Macarena Altamirano, an emotional immature girl, hardheaded, flirty, happy, innocent and very good friend, that falls in love with Byron, the role interpreted by Héctor Morales.

[4] On May 8, 2024, Derderian and her two children were in their home in Vitacura (Greater Santiago), when a fire started in her son Pedro's room.

The children's father, and former partner of Mariana, journalist Francisco Aravena, suffered serious burns trying to save his son[5][6]