Heather Laurie Holden (born December 17, 1969), best known as Laurie Holden, is an American-Canadian actress, producer, and human rights activist. She is perhaps best known for her roles as Marita Covarrubias in The X-Files, Adele Stanton in The Majestic, Cybil Bennett in Silent Hill, Amanda Dumfries in The Mist, Olivia Murray in The Shield, and Andrea in The Walking Dead.