Alan Moore is a comic book writer, famed for such works as V for Vendetta, Watchmen, and Lost Girls. His series The League of Extraordinary Gentlemen contains at least two cameos by John Carter. The first is in the supplemental story Allan and the Sundered Veil, included in Volume One of the series, in which the series' protagonist, Allan Quatermain, encounters Carter and his supposed great nephew Randolph Carter (created by H.P. Lovecraft), as well as the Time Traveller (from the H.G. Wells book of the same name.) Carter has ended up in the same place as Quatermain during the near-death experience that first brought him to Mars in the beginning of A Princess of Mars. Together, these four face off against Wells' Morlocks.The second appearance is at the very beginning of Volume Two, which coincides with Dejah Thoris' imprisonment at the end of The Gods of Mars. In this instance, Carter has been forced to abandon his search for his beloved princess in order to lead the Tharks in an offensive (alongside Edwin Arnold's hero Gullivar Jones and his Hither allies and C. S. Lewis's Sorns) against the "Molluscs" (the "Martians" from War of the Worlds, here presented as invaders from another galaxy). The Molluscs then flee Mars and attack Earth, as seen in War of the Worlds. Artist Kevin O'Neill takes several liberties with regards to Burroughs' creations; O'Neill's rendition of Carter has a mustache and beard and wears a Victorian-style uniform and helmet. The thoats, meanwhile, are depicted as entirely black with spider-like legs.
In the next volume, Black Dossier, set in a 1950s in which Earth has begun exploring the solar system, a Green Martian appears in an English zoo.
One of Burroughs' Green Martians also appears in Alan Moore's humorous fantasy mini-series Smax.