Shailene Woodley
Age: 19
What She's Done: Woodley, who turns 20 in November, rose to fame as Amy on the ABC Family series 'The Secret Life of an American Teenager.' She's appeared on numerous other television shows, including 'Without a Trace,' 'Everybody Loves Raymond' and 'My Name is Earl.'
What's Next: The reason she's on this list: a co-starring turn opposite George Clooney in 'The Descendants' (out in November) which has already put Woodley on the short-list of Best Supporting Actress contenders. In the Alexander Payne-directed film, Woodley plays Clooney's daughter, a wild child who helps her father overcome the news that her hospitalized mother was cheating on him.
Did You Know? Woodley was the original Kaitlin Cooper on 'The O.C.'; she was later replaced by Willa Holland.