Rooney Mara, born April 17, 1985, is an American actress. Born into the Rooney and Mara families, she began her career acting in television and independent films, such as the coming-of-age drama Tanner Hall (2009), and gained greater recognition for a supporting role in David Fincher’s biographical drama The Social Network (2010).
Mara is known for her charity work and oversees the Uweza Foundation, which supports empowerment programs for children and families in the Kibera slum of Nairobi. She is also the founder of the vegan clothing line Hiraeth Collective. Mara is in a relationship with actor Joaquin Phoenix, with whom she has a son.
Rooney is the younger sister of Kate Mara.