Maia Mitchell (born August 18, 1993) is an Australian actress and singer. She is best known for her role as Brittany Flune in the children's television series Mortified for Nine Network Australia, and as Natasha Hamilton in the Seven Network's teen drama Trapped. For American audiences, she currently co-stars in the ABC Family drama, The Fosters. She also co-starred with Ross Lynch in the Disney Channel original film Teen Beach Movie as McKenzie "Mack" and has also guest starred on an episode of Jessie as Shaylee Michaels.