Melinda Patrice "Mindy" Clarke (born April 24, 1969) is an American actress. She is known for portraying Faith Taylor on the soap opera Days of Our Lives (1989–1990), Julie Cooper on Fox's teen drama series The O.C. (2003–2007), Lady Heather on CBS's crime drama series CSI: Crime Scene Investigation (2001–2015) and Amanda on the action thriller series Nikita (2010–2013).