A case  Mulder kept secret from  Scully comes to light as  Doggett investigates circumstances that may ultimately relate to Mulder's unexplained disappearance in the "The Gift" episode of THE X-FILES Sunday, Feb. 4 (9:00-10:00 PM ET/PT) on FOX. (XF-811) (TV-PG; V)

Cast: David Duchovny as Agent Fox Mulder, Gillian Anderson as Agent Dana Scully, Robert Patrick as Agent John Doggett, Mitch Pileggi as Assistant Director Walter  Skinner

Guest Cast: Bruce Harwood as Byers; Tom Braidwood as Frohike; Dean Haglund as Langly; Jordan Marder as Creature; Michael McGrady as Sheriff Kurt Frey; Justin Williams as Paul Hangemuhl; Natalie Radford as Marie Hangemuhl; Caroline Lagerfelt as Rustic Woman