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, Erin McGuire on the short-lived TV show Trust Me, and CIA Agent Lena Smith on the USA Network show Covert Affairs.

Biography

Clarke met her husband, Xander Berkeley, while on the set of 24 (he played her supervisor, George Mason) and they were married in September 2002, a year after meeting. They have two daughters: Olwyn Harper (born on September 23, 2006) and Rowan (born c. March 2010).