Olivia Wilde – 35

Contrary to what many might believe, Olivia Wilde is a natural blonde. She is a famous actress and model whose career began in 2003 when she was cast on Skin. But it was her role on The O.C. that attracted attention on Olivia and bigger roles soon followed. She is most praised for TRON: Legacy, The Incredible Burt Wonderstone, The Lazarus Effect, The Words, and she was most recently seen on Life Itself. Olivia also has a prominent career on Broadway and she is a strong activist for healthcare causes.