Kate Mara (born February 27, 1983) is an American television, stage and film actress. She moved from the stage to her first film, Random Hearts, in 1999. Other roles include appearances in Brokeback Mountain (2005), and on the Fox television series 24, as computer analyst Shari Rothenberg. She appeared in such feature films as We Are Marshall (2006), Shooter (2007), Transsiberian (2008), Stone of Destiny (2008) and The Open Road (2009).
Kate is the older sister of actress Rooney Mara.
Kate graduated from high school a year early. She was accepted at the prestigious NYU Tisch School of the Arts but deferred for 3 consecutive years due to acting and singing.
She is the great-granddaughter of the founder of the New York Giants, Timothy Mara and Art Rooney, founder of the Pittsburgh Steelers. She often sings the national anthem at Giants home games.