Xander Berkeley is a fantastic actor who has had significant parts in some of the best movies in history, a few of which were Academy Award winning movies. Some of Xander's filmography includes: Terminator 2, A Few Good Men, Heat, Apollo 13, Leaving Las Vegas, Air Force One, Gattaca, Amistad, Taken, Kick-Ass, Faster and currently Proud Mary. Xander is involved in many projects, most notably as Gregory, Mayor of the Hilltop on The Walking Dead (and he's phenomenal). Meet the very funny and talented: Xander Berkeley.