The New Classics: TV". Entertainment Weekly. 2008. Archived from the original on April 24, 2012 . Retrieved July 27, 2009. Duncan, Jody (1998). The Making of The X-Files Movie. New York City, NY: Harper Prism. ISBN 9780061073168. Michelle Maxwell MacLaren (director); Vince Gilligan (writer) (January 13, 2002). " John Doe". The X-Files. Season 9. Episode 7. Fox.

TFAW.com: Home > Series > X Files". tfaw.com. Archived from the original on July 2, 2017 . Retrieved November 28, 2017.Ausiello, Michael (May 14, 2018). "X-Files: Fox Has 'No Plans' for a Season 12 Following Gillian Anderson Exit". TVLine . Retrieved June 6, 2018. Fox Mulder: [sighs] I believe... that I sat in a motel room like this with you when we first met... and I tried to convince you of the truth. And in that respect, I succeeded, but... Bischoff, David (December 1994). "Opening the X-Files: Behind the Scenes of TV's Hottest Show". Omni. Vol.17, no.3. General Media, Inc. Spangler, Todd (November 28, 2017). " 'X-Files: Deep State' Alien-Invasion Mystery Game on Tap for February 2018 Release". Variety . Retrieved May 14, 2018.

McManus, Darragh (July 26, 2008). "X Hits the Spot". Evening Herald. Independent News & Media . Retrieved August 17, 2009. Hoffman, Jordan (June 26, 2021). " 'X-Files' Creator Wants You to Chill Out on the Conspiracy Theories". Vanity Fair . Retrieved May 15, 2023. Smallville will break Stargate SG-1's world record". GateWorld. March 9, 2010 . Retrieved May 19, 2010. Somebody at one point said something about the fact that I’ve ended up with, or have chosen, these roles where it’s me. . . not necessarily against, but rivalling these [male] characters: the triptych of Mulder, Hannibal and Spector [the killer from The Fall]. Linder, Brian (January 18, 2001). " X-Files Exits After 9 Seasons". IGN . Retrieved August 17, 2009.Pastorek, Whitney (2003). "The Sci-Fi 25: The Genre's Best Since 1982". Entertainment Weekly. Archived from the original on December 11, 2011 . Retrieved July 27, 2009. Zarges, Torsten (October 12, 2013). "Neue US-Ware: So Sill ProSieben Maxx 2014 Wachsen". DWDL.de . Retrieved February 23, 2014. The Cigarette Smoking Man is the series' primary villain. In the ninth-season episodes "William" and "The Truth", it is suggested that he is Mulder's biological father. [31] [32] In the seventh-season episode " Requiem", he is believed to have been killed after being pushed down a flight of stairs by Alex Krycek until the ninth-season finale " The Truth", in which Mulder and Scully travel through remote New Mexico and reach a pueblo where a "wise man" reputedly lives, who is revealed to be Cigarette Smoking Man. [12] [29] He also appears in the 1998 feature film. [33]