VIDEO : Mitch Pileggi Returning For New X-Files Season

Mitch Pileggi, who plays FBI honcho Walter Skinner on The X-Files, is officially back on the case for season 11. While David Duchovny and Gillian Anderson have headed up the cast of the acclaimed paranormal drama The X-Files since 1993, several other stars have emerged throughout the series thanks to unique stories and carefully crafted character development. Among them, of course, are William B.