Heather Laurie Holden (born December 17, 1969) is an American-Canadian actress, producer, model, and human rights activist. She is best known for her portrayals as Marita Covarrubias in The X-Files (1996–2002), Andrea Harrison in AMC's The Walking Dead (2010–2013, 2020–2022), and Amanda Dumfries in The Mist (2007).
Holden is also known for her roles as Adele Stanton in The Majestic (2001), Cybil Bennett in Silent Hill (2006), Olivia Murray in The Shield (2008), Renee in The Americans (2017–2018), and the Crimson Countess in Vought News Network: Seven on 7 with Cameron Coleman (2021) and The Boys (2022).