Heather Laurie Holden (born December 17, 1969) is an American-Canadian actress, producer, model, and human rights activist. She is known for her roles as Marita Covarrubias in The X-Files (1996–2002), Adele Stanton in The Majestic (2001), Cybil Bennett in Silent Hill (2006), Amanda Dumfries in The Mist (2007), Olivia Murray in The Shield (2008), Andrea in The Walking Dead (2010–2013) and Renee in The Americans (2017-2018).