Sarah Clarke — American Actress born on February 16, 1972,
Sarah Clarke 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, Erin McGuire on the short-lived TV show Trust Me, and CIA Agent Lena Smith on the USA Network show Covert Affairs... (wikipedia)