Mischa Anne Marsden Barton (born January 24, 1986) is a television and film actress perhaps best known for her role as Marissa Cooper in the American television series The O.C.
Mischa Barton was born in Hammersmith, London, to an Irish mother, Nuala (née Quinn), a photographer, and English father, Paul Marsden Barton, a stockbroker. She has two sisters, Hania and Zoe .[1][2] Barton moved to New York City at the age of four and became a naturalized citizen of the United States in Los Angeles on February 3, 2006. She is also by birth a citizen of the United Kingdom.[3] Barton graduated from the Professional Children's School in Manhattan in 2004, and attended classes at The Royal Academy of Dramatic Art in the summer of 2006.

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