13 – Mischa Barton
Named the “It Girl” of 2003 by Entertainment Weekly, fans best remember Mischa Barton as Marissa Cooper on the hit television series The O.C. which ran from 2003 until 2006.
An overnight success thanks to the show, Hollywood expected Barton to be the next A-list star as she appeared in films like St. Trinian’s and Closing the Ring before her life and career began unraveling at the seams.
Much like Lisa Robin Kelly, Barton had trouble finding her footing after The O.C. Two days after Christmas in 2007, she was pulled over and arrested for drunk driving, driving without a valid license and possession of marijuana.
A month later, she publicly apologized for the incident only to be charged with two misdemeanors for a DUI and an invalid license shortly after. In 2009, things still hadn’t gotten better for the former “It Girl” when she was diagnosed with a mental illness and was admitted into psychiatric care for two weeks leaving many to worry about her mental and physical health.