Laurie Holden is a great actress who's face can be seen as many different roles!
She played Marita in The X-Files, Olivia in The Shield, and currently plays Andrea in The Walking Dead. In addition, she has guest starred on Murder, She Wrote, Poltergeist: The Legacy, Two, and Big Sound.
In addition, you can also see Holden in the films Silent Hill, The Mist, and The Shield.