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The O.C. ran for four seasons from 2003 to 2007

The drama followed teenagers in Orange County and starred Ben McKenzie, Adam Brody, Rachel Bilson and more

Many of the cast members have gone on to welcome children of their own

The O.C. cast has gone from high school rebels to moms and dads.

The series — which ran for four seasons from 2003 to 2007 — followed teenagers (and their beleaguered parents) in Orange County, Calif. However, since the show wrapped, many of the cast members — including Ben McKenzie , Adam Brody , Rachel Bilson and more — have gone on to become parents themselves.

Meanwhile, some of the other stars already had children while the show was filming. Actress Kathryn Gallagher — who is the daughter of the show's patriarch Peter Gallagher — s

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