Chloe Moretz
Age: 14
What She's Done: After playing Joseph Gordon-Levitt's younger sister in '(500) Days of Summer,' Moretz burst onto the scene with her role as Hit-Girl in 'Kick-Ass' last year. She also starred in 'Let Me In,' a remake of the cult foreign film 'Let the Right One In' (it's about vampires), as well as 'Diary of a Wimpy Kid.' Moretz even appeared as a nemesis to Alec Baldwin in a season five episode of '30 Rock.' 
What's Next: Moretz stars in the just-released 'Texas Killing Fields. She'll then play the female lead in Martin Scorsese's 3D family adventure 'Hugo' (out in November). Next year she'll appear as a teen runaway opposite Blake Lively in the drama 'Hick' and in Tim Burton's highly anticipated 'Dark Shadows' reboot with Johnny Depp, Helena Bonham Carter and Michelle Pfeiffer. Moretz is also part of the omnibus comedy 'Movie 43' with stars ranging from Elizabeth Banks to Kate Winslet and Hugh Jackman.
Did you know? Moretz recreated Jodie Foster's controversial role in the Martin Scorsese film 'Taxi Driver' for the November issue of Harper's Bazaar.