X-Men, also known as X-Men: The Animated Series, is an American animated television series which debuted on October 31, 1992, in the United States on the Fox Network, as part of its Fox Kids Saturday morning lineup. X-Men was Marvel Comics' second attempt at an animated X-Men TV series after the pilot, X-Men: Pryde of the X-Men, was not picked up.
The show features X-Men similar in look and line-up to the early 1990s X-Men drawn by Jim Lee (specifically, Cyclops's Blue Team, established in the early issues of X-Men: Legacy), composed of Cyclops, Wolverine, Rogue, Storm, Beast, Gambit, Jubilee, Jean Grey, Professor X, as well as an original character, Morph (an adaptation of previous X-Men member Changeling).[6]

The series deals with social issues, including divorce ("Proteus"), Christianity ("Nightcrawler" and "Bloodlines"), the Holocaust ("Enter Magneto", "Deadly Reunions", "Days of Future Past" and "The Phalanx Covenant") and AIDS hysteria ("Time Fugitives"), and feelings of loneliness ("No Mutant Is an Island"). Television was satirized in the episodes "Mojovision" and "Longshot".

X-Men crossed over with the animated series Spider-Man, when Spider-Man seeks out the X-Men's help to stave off his progressing mutation. In the abbreviated form of the Secret Wars storyline, the Beyonder and Madame Web selected Spider-Man to lead a team of heroes including Storm against a group of villains. An earlier draft of "Secret Wars" involved all of the X-Men, but transporting the voice cast to Los Angeles where production for the Spider-Man animated series was based from Canada had been too costly in previous crossovers, so the episode was re-written to include only Storm, whose actress, Iona Morris, lived in Los Angeles. Hulk and She-Hulk were excluded from the episodes because the Incredible Hulk animated series featuring the characters was airing on rival network UPN.

The first season of the show brought the X-Men into conflict with human conspirators building mutant-exterminating Sentinel robots, Magneto and his attempts to instigate a human-mutant war, and the powerful mutant Apocalypse's plans to eradicate the weak, both human and mutant alike. Other storylines including X-Men member Morph's death at the hands of Sentinels, Beast's incarceration, and an assassination attempt on US senator Kelly by Apocalypse's minions to turn human sentiment against the mutants. The second season sees Cyclops and Jean get married and become the targets of Mister Sinister, who hopes to use the genetically perfect combination of their DNA to create an army of obedient mutants. Morph returns, having been rescued by Sinister and brainwashed into forcing the X-Men apart. The season also features the growing rift between humans and mutants, spearheaded by the Friends of Humanity, an anti-mutant group who lead the persecution of all mutants. Apocalypse also returns, developing a deadly plague to be blamed on mutants, fueling mutant hatred.
Professor X / Charles Xavier (Cedric Smith): The founder and leader of the X-Men and a powerful telepath.
Cyclops / Scott Summers (Norm Spencer): The second-in-command and field commander of the X-Men. He possesses the ability to fire concussive blasts from his eyes. He and Jean Grey are in a longstanding relationship, and marry at the end of the final season.
Jean Grey / Phoenix (Catherine Disher): A telekinetic and telepath. She is in a longstanding relationship with Cyclops, and they marry at the end of the final season.
Wolverine / Logan (Cathal J. Dodd): A mutant with a regenerative healing factor, heightened senses, an adamantium-laced skeleton that render his bones virtually indestructible, and retractable claws capable of cutting virtually anything. He was attracted to Jean, but decided not to come between her and Scott.
Rogue (Lenore Zann): She possesses the uncontrollable ability to absorb the memories, powers and energy of those she touches; however, if Rogue holds onto someone too long, their consciousness will be trapped in her subconscious. She has permanently absorbed the superhuman strength, durability and flight of Ms. Marvel; Ms. Marvel was left a vegetable due to this.
Storm / Ororo Munroe (Iona Morris (1992–93), Alison Sealy-Smith (1993–97)): She is able to control the weather, using it to injure her foes or fly and is second in command of the X-Men. Storm has to remain in constant control of her emotions, as they are linked to her powers; if she let loose, she would call horrific weather conditions that would put lives at jeopardy.
Beast / Dr. Henry "Hank" McCoy (George Buza): His mutation covers his body in fur and morphs his body, granting him superhuman strength and agility to complement his genius mind. He spends most of the first season imprisoned unfairly for destroying the government's records of registered mutants, which was being abused by Gairick and Trask.