Mischa Barton is an American actress who was born in England. She has appeared in several movies, TV shows, and plays, but she is best known for playing the role of Marissa Cooper on the TV show "The O.C.". Mischa Barton has also been arrested for for a DUI and driving without a valid license. She also has a propensity to be a victim of "wardrobe malfuncitons," as is evident by conducting an image search. Yup, that'll do it.