Mitch Pileggi

Mitchell Craig "Mitch" Pileggi (born April 5, 1952) is an American actor. Pileggi is known for playing FBI assistant director Walter Skinner on the long-running popular series The X-Files. He also had a recurring role on Stargate Atlantis as Col. Steven Caldwell. He appeared in the 2008 film, Flash of Genius. Description above from the Wikipedia article Mitch Pileggi   licensed under CC-BY-SA, full list of contributors on Wikipedia.