Kate Rooney Mara (born February 27, 1983) is an American actress. Mara made her film debut in Random Hearts (1999). She has since appeared in Brokeback Mountain (2005), We Are Marshall (2006), Shooter (2007), Transsiberian (2008), Stone of Destiny (2008), The Open Road (2009), Transcendence (2014), The Martian (2015), Fantastic Four (2015), Morgan (2016), Megan Leavey (2017), My Days of Mercy (2017), and Chappaquiddick (2018).