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.
as Professor Charles M. Ridley
as John Kelly
as Bonham Walker(69 eps)
as Papa(1 ep)
as Sheriff Thomas Pembroke
as Rex(1 ep)
as TRF Group Leader
as Rama Khan(4 eps)
as Sheriff Porter
as Harris Ryland(40 eps)
as Eddie Ross(1 ep)
as Gunter MacGregor
as Art(2 eps)
as Randall(1 ep)
as Miller
as Leonard Kreese(1 ep)
as Steven Caldwell
as Hans Brauer(1 ep)
as John Weller
as Colin Saunders(1 ep)
as Narrator (voice)(13 eps)
as Macklin Tyler
as Ernest Darby(13 eps)
as Walter Skinner
as Al Dennison(1 ep)
as Bill Daley
as Detective Dan Stafford(1 ep)
as Floyd
as Detective Spivak(13 eps)
as Browne Carter(3 eps)
as Samuel Campbell(7 eps)
as Samuel Campbell / Shapeshifter(1 ep)
as Robert Sutherland(1 ep)
as Lawrence Jennings(8 eps)
as Dan Burroughs(4 eps)
as U.S. Attorney Mark Freestone(1 ep)
as Colin Dowling(13 eps)
as Commissioner Gordon (voice)(14 eps)
as Gordon (voice)(1 ep)
as Steven Caldwell(22 eps)
as Richard Clayton(8 eps)
as Wynn Crawford(2 eps)
as Dr. Russell Marcus(1 ep)
as Warren Jacobi
as Al Hawke(1 ep)
as Walter Skinner(1 ep)
as Narrator
as Happy Harry Desmond(1 ep)
as Dexter Helvenshaw
as Senator Dresden(1 ep)
as Jack Hammond(2 eps)
as Dr. Stanton (voice)(1 ep)
as Bull(1 ep)
as Police Chief Jeff Croy
as Walter Skinner
as Self
as Narrator (Voice)
as Carl Rikker
as Self / Narrator (voice)
as Tony the Hitman
as Self
as Vince
as Terry Waters(1 ep)
as Thompson
as Walter Skinner(91 eps)
as Walter Skinner / SS Sturmbannfuehrer(1 ep)
as Internal Affairs Investigator
as White Officer(1 ep)
as Thomas J. Watts
as Dominique
as Captain Keller
as Max(1 ep)
as Horace Pinker
as John Paul Sartre(1 ep)
as Caleb
as Duke Herman
as Bull Tully
as Lab Foreman
as Gate AP
as Verbeck
as Stephens
as Paul Winkle(1 ep)
as Woody
as Saunder's Henchman(2 eps)
as Eddie(1 ep)
as Morrisey(2 eps)
