Sarah Clarke (born February 16, 1972) is an American actress, best known for her role as Nina Myers on 24, and also for her roles as Renée Dwyer, Bella Swan's mother, in the 2008 film Twilight as well as Erin McGuire on the short-lived TV show, Trust Me. Description above from the Wikipedia article Sarah Clarke, licensed under CC-BY-SA, full list of contributors on Wikipedia.