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.

• The X Files (1998)

  
• The X Files: I Want to Believe (2008)

  
• The X-Files (1993)

  
• Shocker (1989)

  
• Polaroid (2019)