Beautiful actress Christian Serratos has been cast to play as the new character Rosita who will appear in season 4. Source: screencrush.com. Serratos has been in movies such as The Twilight Saga: Breaking Dawn, The Twilight Saga: Eclipse, The Twilight Saga: New Moon and Twilight. She’s also been in television shows such as The Secret Life of the American Teenager and Ned’s Declassified School Survival Guide. Check out Serratos’s IMDB page to see what else she has worked on.