Get to Know the Season 22 Cast of Dancing with the Stars

A former teen queen, a Tanner sister, an ex-Trump wife and more!

10. Mischa Barton & Artem Chigvintsev

We didn't see much of Barton's moves on The O.C., and perhaps for a good reason: The actress was a dealt a 16/30 on the opening night, the third lowest score of the evening.