Mitch Pileggi confirmed on his Twitter account today that he will return as Walter Skinner in Fox's 6-episode X-Files event series.
David Duchovny reveals on Late Show with David Letterman that William B. Davis and Mitch Pileggi will return for the new X-Files event series.B. Alan Orange
It seems the Winchester brothers' grandfather will shed new light on their history.
A new story reveals the Winchester brothers' grandfather could return.