Mireille Enos (born September 22, 1975) is an American actress best known for roles as Kathy and Jodeen Marquart (twins) on the HBO drama series Big Love (2007–2010) and as Sarah Linden on the AMC series The Killing (2011). Enos was nominated for a Tony Award (Best Featured Actress in a Play) in 2005 for her performance in the Broadway production of Who's Afraid of Virginia Woolf. She also has numerous television appearances, notably playing Kathy and Jodeen Marquart, twin sisters, in HBO's Big Love. She moved to leading role status with AMC's The Killing, which premiered on April 3, 2011 and earned her an Emmy nomination, as well as a Critics' Choice Award nomination. Enos attended the High School for the Performing and Visual Arts in Houston TX. Enos studied at Brigham Young University. She was raised in The Church of Jesus Christ of Latter-day Saints, but no longer practices. According to an interview with The Daily Record, she is of partial Scottish ancestry. She married actor Alan Ruck on January 4, 2008. Daughter Vesper Vivianne Ruck was born on September 23, 2010.