: Mischa Barton is a British-American actress born on January 24, 1986, in London, England, who grew up in the United States. She became one of the most recognisable faces of the early 2000s through her role as the troubled Marissa Cooper in the hugely popular teen drama The O.C. (2003–2006). She has also appeared in films including Lawn Dogs, The Sixth Sense, Notting Hill, Closing the Ring, and The Beautiful Life.