Olivia Wilde

Olivia Wilde first became known for playing the bisexual Alex Kelly on the FOX hit The O.C. but it was her role as Dr. Remy "Thirteen" Hadley on House that made her a household name. She has since gone on to star in the films Tron: Legacy, Cowboys & Aliens and In Time. Olivia secretly married the son of an Italian prince, Tao Ruspoli, in 2003 on an abandoned schoolbus when she was only 19. The couple sadly divorced in 2011 but it's doubtful she'll be single for long. In 2009, she was named No. 1 on Maxim's Hot 100 list so Olivia won't have a hard time finding a new beau.