Rooney Mara

(b. April 14, 1985) is an American actress known for her starring role as Nancy in the remake of 'Nightmare on Elm Street,' as Mark Zuckerberg's ex in 'The Social Network' and as Lisbeth Salander in 'The Girl With The Dragon Tattoo.' She is the sister of actress Kate Mara and granddaughter of longtime New York Giants owner Wellington Mara.