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 Renee Dwyer, Bella Swan's mother, in the 2008 film Twilight as well as Erin McGuire on the short-lived TV show, Trust Me. She currently has a recurring role as CIA Lena Smith, in the USA Network show Covert Affairs. Clarke was born in St. Louis, Missouri, the daughter of Carolyn, a homemaker, and Ernest Clarke, an engineer. She attended John Burroughs School in St. Louis, Missouri (along with Mad Men star Jon Hamm, who was her prom date), and Indiana University, where she studied Fine Arts and Italian. While a student at IU, Clarke became a member of the Kappa Alpha Theta sorority. She was initiated into the Beta chapter in 1990.
Contributions by Hollywood-Adey, Sergay, and GabriellaHoward.