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.
Basic Instinct
Internal Affairs Investigator
The X-Files
Assistant Director Walter Skinner
Return of the Living Dead Part II
Sarge
The X Files: I Want to Believe
Walter Skinner
Shocker
Horace Pinker
Three O'Clock High
Duke Herman
Recount
Bill Daley
Man in the Chair
Floyd
Death Wish 4: The Crackdown
Lab Foreman
First to Die
Warren Jacobi
Legion of Fire: Killer Ants
Police Chief Jeff Croy
Mega Cyclone
Gunter MacGregor
Desert Shadows
Professor Charles M. Ridley
On the Line
Stephens
Conspiracy Theory: Did We Land on the Moon?
Narrator
Mongrel
Woody
Inside The X-Files
Self
Flash of Genius
Macklin Tyler
Knight Rider 2000
Thomas J. Watts
Trouble Shooters: Trapped Beneath the Earth
Thompson
U.S. Marshals: Waco & Rhinehart
Gate AP
Dalton: Code of Vengeance II
Verbeck
Raven Hawk
Carl Rikker
The Girl in the Photographs
Sheriff Porter
Gun Shy
Dexter Helvenshaw
Dangerous Touch
Vince
Transformers: The Last Knight
TRF Group Leader
3 On a Match
Bull Tully
Night Visions
Captain Keller
Polaroid
Sheriff Thomas Pembroke
Brothers in Arms
Caleb
Xtra Credit
John Weller
Guilty As Charged
Dominique
Vampire in Brooklyn
Tony the Hitman
American Traitor: The Trial of Axis Sally
John Kelly
Stargate Atlantis: Fans' Choice
Steven Caldwell
Breaking the Magician's Code: Magic's Biggest Secrets Finally Revealed
Host
Secrets of the X-Files
Self
More Secrets of the X-Files
Self / Narrator (voice)
The Making of 'The X Files: Fight the Future'
Narrator (Voice)