Melinda Clarke (born April 24, 1969 height 5' 7" (1,70 m)) is an American actress who has primarily worked in television. Clarke is best known for playing Faith Taylor on the daytime drama Days of our Lives, the manipulative and cunning Julie Cooper-Nichol on The O.C., as well as the professional dominatrix Lady Heather on CSI. From 2010 to 2013, she portrayed Amanda on the action-thriller television series Nikita. She was added as a recurring character on Vegas in 2013.