
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.





























2022Desert Shadows as Professor Charles M. Ridley
2021American Traitor: The Trial of Axis Sally as John Kelly
2021Walker (69 Episodes) as Bonham Walker
2020Helstrom (1 Episode) as Papa
2019Polaroid as Sheriff Thomas Pembroke
2018The Rookie (1 Episode) as Rex
2017Transformers: The Last Knight as TRF Group Leader
2015Supergirl (4 Episodes) as Rama Khan
2015The Girl in the Photographs as Sheriff Porter
2012Dallas (40 Episodes) as Harris Ryland
2012The Finder (1 Episode) as Eddie Ross
2011Mega Cyclone as Gunter MacGregor
2011American Horror Story (2 Episodes) as Art
2011Against the Wall (1 Episode) as Randall
2010Woodshop as Miller
2010Human Target (1 Episode) as Leonard Kreese
2009Stargate Atlantis: Fans' Choice as Steven Caldwell
2009Castle (1 Episode) as Hans Brauer
2009Xtra Credit as John Weller
2008Leverage (1 Episode) as Colin Saunders
2008Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed (13 Episodes) as Narrator (voice)
2008Flash of Genius as Macklin Tyler
2008Sons of Anarchy (13 Episodes) as Ernest Darby
2008The X Files: I Want to Believe as Walter Skinner
2008In Plain Sight (1 Episode) as Al Dennison
2008Recount as Bill Daley
2007Reaper (1 Episode) as Detective Dan Stafford
2007Man in the Chair as Floyd
2006Day Break (13 Episodes) as Detective Spivak
2006Brothers and Sisters (3 Episodes) as Browne Carter
2005Supernatural (7, 1 Episode) as Samuel Campbell, Samuel Campbell / Shapeshifter
2005Grey's Anatomy (9 Episodes) as Lawrence Jennings
2005Medium (4 Episodes) as Dan Burroughs
2004Boston Legal (1 Episode) as U.S. Attorney Mark Freestone
2004The Mountain (13 Episodes) as Colin Dowling
2004The Batman (14, 1 Episode) as Commissioner Gordon (voice), Gordon (voice)
2004Stargate Atlantis (22 Episodes) as Steven Caldwell
2003Tarzan (8 Episodes) as Richard Clayton
2003NCIS (2 Episodes) as Wynn Crawford
2003Nip/Tuck (1 Episode) as Dr. Russell Marcus
2003First to Die as Warren Jacobi
2002Birds of Prey (1 Episode) as Al Hawke
2001The Lone Gunmen (1 Episode) as Walter Skinner
2001Conspiracy Theory: Did We Land on the Moon? as Narrator
2000CSI: Crime Scene Investigation (1 Episode) as Happy Harry Desmond
2000Gun Shy as Dexter Helvenshaw
1999The West Wing (1 Episode) as Senator Dresden
1999Law & Order: Special Victims Unit (2 Episodes) as Jack Hammond
1999Batman Beyond (1 Episode) as Dr. Stanton (voice)
1998That '70s Show (1 Episode) as Bull
1998Legion of Fire: Killer Ants as Police Chief Jeff Croy
1998The X-Files as Assistant Director Walter Skinner
1998Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed 3 as Host
1998Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed 2 as Host
1998Inside The X-Files as Self
1997Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed as Host
1996Raven Hawk as Carl Rikker
1995Vampire in Brooklyn as Tony the Hitman
1995Dangerous Touch as Vince
1994ER (1 Episode) as Terry Waters
1993Trouble Shooters: Trapped Beneath the Earth as Thompson
1993The X-Files (89, 1 Episode) as Walter Skinner, Walter Skinner / SS Sturmbannfuehrer
1992Basic Instinct as Internal Affairs Investigator
1991Roc (1 Episode) as White Officer
1991Knight Rider 2000 as Thomas J. Watts
1991Guilty As Charged as Dominique
1990Night Visions as Captain Keller
1990Get a Life (1 Episode) as Max
1989Alien Nation (1 Episode) as Unknown
1989Shocker as Horace Pinker
1988Brothers in Arms as Caleb
1988Return of the Living Dead Part II as Sarge
1987Three O'Clock High as Duke Herman
19873 On a Match as Bull Tully
1987Death Wish 4: The Crackdown as Lab Foreman
1987U.S. Marshals: Waco & Rhinehart as Gate AP
1986Dalton: Code of Vengeance II as Verbeck
1984On the Line as Stephens
1983The A-Team (1 Episode) as Paul Winkle
1982Mongrel as Woody
1981Falcon Crest (2, 1 Episode) as Saunder's Henchman, Eddie
1978Dallas (2 Episodes) as Morrisey