She played Sadie Campbell on the O.C.
Nicole Houston "Nikki" Reed is an American film and television actress, screenwriter, singer-songwriter, and model. She became known in 2003, after the release of the film Thirteen, directed by Catherine Hardwicke, for which she was credited with Hardwicke as a co-writer of the screenplay, and in which she played a lead role. Reed has since appeared in several films, including Lords of Dogtown and Mini's First Time. She also portrays Rosalie Hale in The Twilight Saga. Two of these were also directed by Hardwicke.