Heather Laurie Holden (born December 17, 1969), better known as Laurie Holden, is an American actress, producer, model, and human rights activist. She is perhaps best recognized 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, Dr. Hannah Tramble in Chicago Fire, and Andrea in The Walking Dead.