Mitch Pileggi

Warren had worked on the set of The X-Files as a stand-in for Gillian Anderson. His family moved frequently because of his father's occupation and Pileggi lived in Oregon California and Texas before spending most of his adolescence in Turkey. Pileggi also appeared on the show Cold Case in the episode "Offender" as a father accused of molesting and murdering his own son who then threatens to murder one child sex offender per day until the case is reopened and solved.

Mitchell Craig "Mitch" Pileggi (born April 5 1952) is an American actor best known for his role as Walter Skinner on The X-Files. He also had a recurring role on Stargate Atlantis as Colonel Steven Caldwell.