The Sentinels are a fictional variety of mutant-hunting robots appearing in American comic books published by Marvel Comics. They are typically depicted as antagonists to the X-Men.
The Legacy Virus is a fictional plague appearing in American comic books published by Marvel Comics, in particular those featuring the X-Men. It first appeared in an eponymous storyline running through Marvel Comics titles from 1993 to 2001, during which it swept through the mutant population of the Marvel Universe, killing hundreds and mutating so that it affected non-mutant humans as well.
Cable is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with X-Force and the X-Men. The child Nathan first appeared as a newborn infant in The Uncanny X-Men #201 created by writer Chris Claremont, while the adult warrior Cable was created by writer Louise Simonson and artist/co-writer Rob Liefeld, and first appeared in The New Mutants #87. Initially, Cable's origin was undecided and he was assumed to be a separate character. It was later decided that he was actually an older version of the child Nathan, having later become a time traveler.
Emma Grace Frost is a fictional character appearing in American comic books published by Marvel Comics, most commonly in association with the X-Men. The character first appeared in The Uncanny X-Men #129, and was created by writer Chris Claremont and artist/co-writer John Byrne. Emma Frost, also known as the White Queen, has evolved from a supervillain and foe of the X-Men, to becoming a superhero and one of the X-Men's most central members and leaders.
Weapon Plus is a fictional clandestine program appearing in American comic books published by Marvel Comics. It was created by Grant Morrison during their run in New X-Men. The program's purpose is the creation of super-soldiers intended to fight the wars of the future, especially a mutant-human war. Weapon X, the organization's most well-known program, was originally the tenth installation, but eventually it branched off and became an independent program with similar purposes. Morrison's introduction of Weapon Plus also shed new information about the origins of Weapon X, Captain America and other Marvel Comics supersoldiers.
Cypher is a fictional superhero appearing in American comic books published by Marvel Comics. The character appears usually in the X-Men family of books, in particular those featuring The New Mutants, of which Cypher has been a member. He is a mutant with the ability to easily understand any language, whether spoken or written.
Master Mold is a fictional supervillain appearing in American comic books published by Marvel Comics. Since his primary purpose was to act as a portable Sentinel-creating factory, and the Sentinel robots were primarily used to hunt mutants, Master Mold has almost exclusively appeared in the X-Men and related, mutant-themed, comic books.
Nimrod is a fictional character appearing in American comic books published by Marvel Comics. The character first appeared in Uncanny X-Men #191, and was created by writer Chris Claremont and artist John Romita Jr.
Warlock is a fictional character appearing in American comic books published by Marvel Comics.
Donald Pierce is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is depicted as a cyborg and is commonly an enemy of the X-Men.
Fabian Cortez is a fictional mutant supervillain appearing in American comic books published by Marvel Comics. The character is depicted as an adversary of the X-Men. Created by writer Chris Claremont and writer/illustrator Jim Lee, he first appeared in X-Men #1.
The Phalanx are a fictional cybernetic species appearing in American comic books published by Marvel Comics. They have come in conflict with the X-Men as well as other groups on several occasions. They form a hive mind, linking each member by a telepathic system.
Robert Edward Kelly is a fictional character appearing in American comic books published by Marvel Comics. He most often appears in Marvel's X-Men related comic books. He is a prominent United States Senator who began his career on an anti-mutant platform and tended to be an antagonist to the X-Men team. But towards the later days of his career, he began to change his views on mutants as a whole.
"The Phalanx Covenant" was a crossover storyline that ran through Marvel Comics' X-Men family of books in September and October 1994. One of its unique aspects was that the X-Men themselves only played a minor role in the story.
Bastion is a fictional supervillain appearing in American comic books published by Marvel Comics. The character was created by Scott Lobdell and Pascual Ferry and first made a cameo appearance in X-Men #52 while his first full appearance was in The Uncanny X-Men #333.
N'astirh is a fictional character appearing in American comic books published by Marvel Comics. The character was created as a demonic inhabitant of Otherplace.
Cameron Hodge is a fictional supervillain appearing in American comic books published by Marvel Comics. The character is usually depicted as an opponent of the X-Men. Created by writer Bob Layton and artist Jackson Guice, he first appeared as a supporting character in X-Factor #1. Later, under writer Louise Simonson, he was revealed to be secretly acting against X-Factor as the leader of an anti-mutant Right organization. After being killed, his head was later revealed to have been attached to a large cyborg, and later merged with the cybernetic extraterrestrial Phalanx race.
A techno-organic virus is a fictional virus appearing in American comic books published by Marvel Comics. The T-O virus transforms organic material into techno-organic material. Techno-organic material resembles both machinery and living tissue. All techno-organic cells function like independent machines and carry both the virus and all information on their carriers, including memories and appearance. This allows a damaged techno-organic being to rebuild itself from a single cell.
The Purifiers, also known as the Stryker Crusade, are a fictional paramilitary/terrorist organization appearing in American comic books published by Marvel Comics. They are usually depicted as enemies of the X-Men. Created by writer Chris Claremont and artist Brent Anderson, they first appeared in the 1982 graphic novel X-Men: God Loves, Man Kills.
The Magus is a fictional character appearing in American comic books published by Marvel Comics. He is a techno-organic patriarch of an alien civilization.
