Last month, Fox confirmed that their beloved sci-fi series The X-Files is coming back for a six-episode event series, with original series stars David Duchovny and Gillian Anderson reprising their roles as FBI agents Fox Mulder and Dana Scully. Earlier this month, it was revealed by David Duchovny that Walter Skinner (Mitch Pileggi) and CGB Spender, a.k.a. the Cigarette Smoking Man (William B. Davis), will also be back. While we don't have official confirmation on the Cigarette Smoking Man quite yet, Mitch Pileggi confirmed on his Twitter account today that he will be back as Walter Skinner in The X-Files event series. Here's what he had to say below.

"Very happy to announce that Walter Skinner will once again be getting all grumpy and bitchy with his two wayward kids. Very happy."
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Aside from David Duchovny and Gillian Anderson, Mitch Pileggi appeared in the most episodes of The X-Files throughout its nine-season run. He made his debut in the first season's 20th episode, and appeared in 81 episodes in total between 1994 to 2002. Other cast members such as Annabeth Gish (Monica Reyes) and Robert Patrick (John Doggett) have also been rumored to come back, but they have not been confirmed quite yet.

Original series creator Chris Carter is back to write and executive produce the new series, which will begin production sometime this summer. It isn't known when Fox plans on airing the six-episode series at this time, but hopefully we'll learn much more as we get closer to production starting. Mitch Pileggi most recently starred on TNT's Dallas, and he has recently had recurring arcs on FX's Sons of Anarchy and ABC's Grey's Anatomy.