30. Rebel Wilson
A 26-year-old up-and-comer with a killer deadpan, Wilson recently stole scene after scene as Fat Amy in the a cappella competition flick Pitch Perfect. Before that she was one of Kristen Wiig's incestuous roommates in Bridesmaids and a TV star in her native Australia. Wilson has said she decided to become an actress after she had a malaria-induced dream in which she rapped an Oscar acceptance speech, which makes sense for someone who was one half of a Kriss Kross cover duo.