“The O.C.” star Mischa Barton is back after a 2009 nervous breakdown.
Mischa Barton at Age 11

Mischa in Los Angeles at Age 14

Posing for the ‘Lost And Delirious’ Screening at Age 15

With Sister Hania at Sundance at Age 15

Mischa attends the 2002 VH1 Vogue Fashion Awards

At a Fashion Show in 2001

At a Fashion Preview in May 2003

Girlish Laughter in 2003

Benjamin McKenzie and Mischa Barton arrive at “The O.C.” kickoff party in 2003

Her Early Over-shoulder Look

Working the Carpet With Rachel Bilson in 2003

Adam Brody, Mischa Barton and Benjamin McKenzie appear on MTV’s “Total Request Live” in 2003

Wrapping the 2004 Season With the Cast

A Smile for the 2004 Emmys

At the University of Southern California in 2004

Fresh-Faced for a Fox Party in 2005

Winning the Teen Choice Award for Best Actress in a Dramain, 2006

She poses backstage at a 2007 fashion show in New York City

Mischa Barton hangs with Georgina Chapman, Keren Craig, and Rachel Zoe, 2007

The 1000-Yard Stare at a 2007 Fashion Show

