Looking to add more film credits to her résumé, Mara made her way to Tinseltown, where in 2005 she took on a small but key role in Brokeback Mountain. As her career began to take shape, she continued to find steady employment on the big and small screens, which included a stint playing hissable villain Shari Rothenberg on the fifth season of "24."
Mara has subsequently crystallized her star status with appearances in high-profile works such as We Are Marshall (2006), Shooter (2007) and the Oscar-nominated 127 Hours (2010). She joined the cast of the Netflix original series "House of Cards" in 2012.