Allene Damian "Ally" Walker (born August 25, 1961) is an American actress. She made her television debut in the NBC daytime soap opera Santa Barbara (1988) before landing the leading roles on the short-lived dramas True Blue (1989–1990), and Moon Over Miami (1993). During the 1990s, Walker had roles in films such as Universal Soldier (1992), Singles (1992), When the Bough Breaks (1994), While You Were Sleeping (1995), Kazaam (1996), and Happy, Texas (1999). From 1996 to 1999, she played the leading role of Doctor Samantha Waters in the NBC crime drama series Profiler, for which she received Saturn Award for Best Actress on Television nomination. She returned to television with a role in the HBO drama series Tell Me You Love Me (2007), and later played villainous Agent June Stahl in the FX crime drama, Sons of Anarchy (2008–2010). Walker also had the leading role in the short-lived Lifetime police drama series The Protector in 2011. During seasons 4 and 5 (2014 and 2015) of Longmire, she played Dr. Donna Monaghan, a therapist treating veterans who is the title character's love interest. Early life Walker was born in Tullahoma, Tennessee, to James Joseph Walker, a physicist, and Louhannah (née Mann) who would become an attorney. She grew up in Santa Fe, New Mexico, where her father worked at the Los Alamos National Laboratory. Originally intending to become a scientist, she attended the University of California, Santa Cruz, where she earned a degree in biochemistry. Subsequently, she worked as a researcher on a genetic engineering project, while preparing for medical school at UCLA. While spending a semester at Richmond College of Arts in London, UK, she discovered an interest in performing. Her professional career began when she was cast in the film Aloha Summer (1988). Her scene was cut from the final version. Career In early 1988, Walker joined the cast of NBC daytime soap opera Santa Barbara, playing Andrea Bedford. Later that year, she began appearing on primetime television. During the 1989–90 television season, she played the female lead in the short-lived NBC crime drama series True Blue. She later guest-starred on Matlock, L.A. Law, and Tales from the Crypt. She starred in the 1991 NBC television movie Perry Mason and the Case of the Fatal Fashion as the devious daughter of Diana Muldaur's character. In 1993, she starred alongside Billy Campbell in the short-lived ABC comedy-drama, Moon Over