David Duchovny told David Letterman earlier this month that Mitch Pileggi would reprise his role as Walter Skinner on The X-Files revival on Fox, and today Pileggi made it official. The Dallas alum confirmed that he will join stars Duchovny and Gillian Anderson, who will reprise their roles as FBI Agents Fox Mulder and Dana Scully in the six-episode event series.

Very happy to announce that Walter Skinner will once again be getting all grumpy and bitchy with his two wayward kids. Very happy. — Mitch Pileggi (@MitchPileggi1) April 20, 2015

Production on the event series, whose plot is not being revealed, is set to begin this summer. The X-Files follows FBI special agents Scully (Anderson) and Mulder (Duchovny) as they investigate unexplained cases – “X-Files” – for which the only answers involve paranormal phenomena. The show was a breakout when it premiered in 1993 and went on to become a pop culture phenom and a global hit.