The X-Files theme song was actually whistled by composer Mark Snow when his original synthesizer couldn't capture the sound he wanted — and that haunting whistle became one of TV's most recognizable cues. Created by Chris Carter, the show ran on Fox from 1993 to 2002 (with a 2016-2018 revival), defining 1990s sci-fi paranoia and inspiring everything from Lost to Stranger Things.
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You'll explore Agents Mulder and Scully, the alien colonization mythology, classic monster-of-the-week episodes, the Cigarette Smoking Man and the Syndicate, the show's two feature films, the writing room that included Vince Gilligan, and the cultural mark of the FBI's spookiest division.
David Duchovny plays Special Agent Fox Mulder, the believer-skeptic of the FBI's X-Files unit. He starred from 1993 to 2002, returned for two films, and rejoined for the 2016-2018 revival.
"The truth is out there." It's the show's tagline, frequently appearing in the opening credits, and it perfectly captures Mulder's relentless quest for hidden answers.
Chris Carter created the series for Fox. He drew on Watergate-era paranoia, his love of Kolchak: The Night Stalker, and the rising 1990s UFO subculture.
Last updated: May 2026