X-Files appearances

Appearing on X-Files episodes, the Gunmen have become fan favorites, even getting their own T-shirts. They also appeared prominently in episodes written by acclaimed science fiction authors William Gibson and Tom Maddox. One or all of the Gunmen appeared in the following X-Files episodes, as well as all episodes of The Lone Gunmen. All three characters died in the X-Files episode "", which aired the year after The Lone Gunmen series was cancelled.

IDW Comic appearances
Season 10
 * "Believers, Part 2"
 * "Believers, Part 4"
 * "The X-Files: Conspiracy Miniseries"
 * "Pilgrims, Part 1"
 * "Art Gallery: Season 10 Special"
 * "Pilgrims, Part 2"
 * "Pilgrims, Part 3"
 * "G-23, Part 1"
 * "The X-Files: 2014 X-Mas Special"
 * "G-23, Part 2"
 * "Elders, Part 5"

Season 11
 * "Cantus"
 * "2015 X-Mas Special"