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It's been 10 years since the words "Welcome to the O.C., b–h" unleashed the eyebrow-raising but dazzling world of the West Coast elite, where barely there designer bikinis were the dress code and drama was always on the guest list. Rachel Bilson, Adam Brody, Mischa Barton and Benjamin McKenzie formed the core four cast members of the FOX series, which aired from Aug. 5, 2003, to February 22, 2007, but they weren't the only ones whose time at the Newport Beach shore left sandy footprints on their careers. Click through to see the show's soon-to-be-famous guest stars.
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