Mischa Barton
The O.C. launched Mischa Barton's career. She played the "It" girl of Orange County, Marissa Cooper, and no other teen drama has even come close to matching the hype. She even won several Teen Choice Awards, despite leaving The O.C. after three seasons.
Back To Reality
After taking a long break from Hollywood, Barton is set to star in The Hills, a show that credits The O.C. as an inspiration. Despite her successful, though staggered, career, Barton has also been the subject of several legality issues. She's one for "impulsive actions," to say the least.