She’s an accomplished actress and lawyer, best known for her role as Alumna in the 2006 film 53 días de invierno. Over the years, she has drawn public interest not only for her acting talent but also because of her family ties—she’s the sister of well-known actors Mario Casas and Oscar Casas. That connection certainly brought more attention to her journey, though she’s built her own path with determination. Before stepping into the spotlight, she focused on academics and earned a law degree from the prestigious Complutense University of Madrid, proving her dedication beyond the entertainment world.

Born into a close-knit family, her parents are Heidi Sierra and Ramon Casas, who raised a talented bunch of siblings. Alongside Mario and Oscar, she shares her childhood with two other brothers, Christian and Daniel. Growing up with so many siblings may have shaped her perspective, and it’s clear that family plays a big role in her life. While Mario Casas often grabs headlines, she’s maintained her individuality, balancing her legal background with her artistic pursuits. Being part of the Casas family means living in a dynamic environment full of creativity and ambition—and she’s definitely made her mark within it.