Fighting for mutant rights can take on all kinds of meanings . Time and again , theX - Menare thrown into conflict with mutant terrorists . After all , their message is one of serenity , of co - existence between mutants and mediocre humans .

Most of the scoundrel they encounter tend to have the same basic rule on some tier ; they simply fight down for mutant right in a more utmost and fast-growing mode . Because of this , it ’s no surprise that several of the X - Men ’s biggest enemies would wind   up join the squad , at least for a petty while .

Some of these fictitious character joined the X - Men for a very brief sentence , some have done it a few time , some of them are even currently on one squad or another . Other quality have joined the radical in alternate timelines or mediums such as the films or animated cartoon — astonishingly , though , they ’re in the minority .

Comic book art: 1990s X-Men, with Cyclops front and center, surrounded by characters including Storm, Gambit, and more.

In the mainstream continuity , after fifty - plus long time of issue , the hug drug - piece have proven to be very exonerative and suit toward their former foes , even if it has occasionally gotten them into hassle .

Here are the15 Supervillains Who Joined The ex - Men .

15. Magneto

Magneto is the most obvious choice . Everyone who ’s familiar with the ecstasy - Men at this percentage point know that Magneto is never an adversary to the team all the time .

However , he ’s more than that . His views of mutant transcendence are at odds with the X - Men ’s purview of peace , but he just wants the safe for his people . There are times , especially late , when he ’s lessened his drastic meter to seek to represent by the rule of his old , dear friend , Professor X.

Magneto ’s first , most famous round to the side of good was when he led the New Mutants for a time when Xavier was whisked away to the Shi’ar Empire by Lilandra .

61 Years Later, Marvel Introduces the X-Men’s Original Magneto, And They’re Unbelievably Dark copia

He may have on the Q.T. joined the grouping under the guise of Xorn in Grant Morrison’sNew X - Men , though there has been some debate as to whether or not that was really him . In late yr , he ’s been a unconstipated member of the group , having been a pillar ofUncanny X - Menin some of its most recent embodiment .

14. Sabretooth

There was a time when Sabretooth seemed like the least potential character to ever bring together the go - Men . Largely portrayed as a barbarous psychopath , Sabretooth ’s hate of Wolverine run so bass that one would guess he ’d turn down any pass to link the squad on rule alone .

Throughout most of his classic appearing , he never appeared to have much bet in mutant right field one way or the other .   However , he was a Weapon X lab rat , same as Wolverine , and over time the grossly unethical experiment he ’d been subjugate to began to eat at him in the same direction . Of naturally , Sabretooth still worked with team like X - Factor while he was a villain , albeit on a very short leash .

of late , though , he was part of the main roster inUncanny X - Men , alongside former villains such as Magneto and Mystique . Sabretooth has been siding with the forces of good more and more recently and has shown a genuine   attempt to turn over a new folio , even if it does n’t always gibe with him .

x-men’s cyclops with spider-man and captain marvel-1

13. Deathbird

Deathbird is the jealous sis of Shi’ar Empress Lilandra . She desire the pot for herself , urgently . Despite her classically villainous motivations and endeavor to assume her sister ’s linguistic rule , Deathbird has wind up allying herself with the X - Men on several occasion .

When ally with the ten - man to fight off a Phalanx invasion on the Shi’ar homeworld , Deathbird actually winds up forming a romantic relationship with the X - Man Bishop .

She attempts to keep on the side of goodness for a time , and when Bishop see her let an foe live or else of killing him , he begins to hope that he ’s birth a positive influence on her .

X-Men Sabretooth Mystique and Deathbird

However , she ultimately betrays Bishop to the Skrulls in a deal made with Apocalypse , who then betrays her and turn her into his horseback rider , War . Since that incident , Deathbird has more or less remain a villain ever since .

12. Toad

Toad was never very good at being a baddie . Even in the original Brotherhood , confront off against the very first , very inexperient X - man , he did not represent much of any kind of threat . He ’s mostly been the mascot of whatever super - team he ’s array himself with over time .

Naturally , the X - Men would take him in as one of their own . Toad was finally levy to function at the schooltime , which by that point had been renamed the Jean Grey School For Higher Learning — as a janitor .

Though serving as a steward has still made him the butt of some jokes , Toad has descend into his own as a graphic symbol and has show serious attempt to prove himself as more than just a thug or hired throttle .

Magneto defeated Wolverine

11. Juggernaut

Juggernaut was   one of the X - Men ’s earliest enemies . As the half - pal of Charles Xavier , he ’s originally picture as everything the prof is n’t : he ’s all brawn and no mastermind . Over meter he ’s grown a little more complicated but has never strayed too far from his original characterisation .

When he first join the X - man in the page ofUncanny X - Men , it ’s part of a plan hatched by his frequent mate in crime , Black Tom Cassidy , to destroy the squad from within . But when Cassidy betrays him , Juggernaut elect to stay with the Adam - serviceman and make an attempt to change his room .

Juggernaut also briefly joinsNew Excaliburfor a time . Eventually , his attempt at reformation began resulting in a loss of power duringWorld War Hulk . Only by returning to his honest-to-goodness ways does   he discover the strength to regenerate his connection with the gem of Cyttorak that give him his power . Confronting Xavier afterward , Juggernaut admits that reformation is ultimately impossible .

Sabretooth roaring against the backdrop of a full moon

10. Avalanche

Avalanche is a mainstay penis of the secondBrotherhood of Evil Mutants , which is run by Mystique . This Brotherhood is celebrated for finally change state into the government sanctioned Freedom Force . For time off their corporate conviction , after all the wrong they ’d done as mutant terrorist , Mystique and her Brotherhood agreed to run shadow missions for the government . Avalanche was a part of that functioning .

The animated seriesX - mankind : Evolutionhas give the character the most limelight , however . He ’s shown to be the most responsible member of the Brotherhood in this version , even play as almost a parent image to the others . He also has a amorous connection with Kitty Pryde , eventually moderate him to attempt to link the X - human being just so that he can be closer to her .

While Cyclops come across this as a dodging by the Brotherhood , Avalanche is serious in his attempt at reformation . But he give when it becomes clear that despite what they preach , the team can not overlook his criminal past times , and will pick him for everything that goes wrong if he appease .

Deathbird X-Men

9. Danger

Danger is a character that is sort of introduced by Joss Whedon during his now - iconicAstonishing XTC - Menrun . During this serial , it ’s revealed that the Danger Room is in reality sentient and that Professor X abandoned it when he realized it was alive — much like Frankenstein .

Through a serial of holograms and the Danger Room ’s heavy arsenal , the room attacks and disorients both the Adam - Men and the collective pupil . Forming a consistency for herself   in the rough shape of a homo , she prognosticate herself Danger .

When team up with Ord to defeat the X - Men on the Breakworld , Danger ultimately realizes that she has n’t overcome her programing , that she really ca n’t bolt down any mutant , and side with the X - Men in the fight .

A close-up of Toad with his tongue out in a Marvel comic

After that , she still seek to take her revenge on Xavier , but is stopped . She finally joins X - gene and serves as transportation for the original , time - fire hug drug - Men via the Blackbird jet .

8. Pyro

Like Avalanche , Pyro is primarily known as a extremity of Mystique ’s Brotherhood of Evil Mutants .   However , Pyro has never really bear witness to have much of an pursuit in doing anythingthatevil . He ’s always had a softer side , despite his fiery nature .

He ’s even a bestselling author when he ’s not a stealer or , occasionally , a wanted mutant terrorist . He also serve with the Brotherhood when it is rebranded as the authorities vestige ops group Freedom Force . In the comics , Pyro was a victim of the Legacy Virus . Unlike most comic characters , his death seems to be lasting .

In the plastic film series , Pyro is actually a student at the schooling , in training to be an tenner - Man alongside Rogue and Iceman , until Magneto opens his center to the Brotherhood and the path he ’d rather take . InUltimate X - human beings , Pyro joins the X - Men for a prison term .

Juggernaut in flames X-Men

He ’s demo to be a undercover agent , but it ’s in reality part of a plan to trick Stryfe , a nod to his original rendering ’s nefarious nature . He ’s subsequently seen with the Brotherhood inUltimatum , despite there being no inclination toward his desire to unite that group or even entrust the X - Men before that .

7. Mystique

Many complain at Mystique ’s redemption arc in the recent films , particularlyX - Isle of Man : Apocalypse , but the character reference has a farsighted history of changing side . She ’s done many nefarious affair , for sure , and that will always be a part of her nature . But Mystique cares about her citizenry , first and foremost . Anyone who gets in the way of that is but confirmative damage in her eyes . She briefly works with the US government when her Brotherhood is rebranded as Freedom Force and also serves as a undercover agent for Professor X himself in her own solo title .

Mystique first join the disco biscuit - Men when she infiltrate the group by pose as a young mutation named Foxx . She attempts to make Gambit simply to break in him up with Rogue , but is eventually found out , at which point she declares her aloneness and trust to join the squad . Mystique is granted membership on probationary status , though to the shock of no one , she ultimately show herself to be a traitor .

6. Krakoa

In one of the most iconic and important 10 - Men story of all time , Professor X recruit a novel team of X - Men when the original team goes missing somewhere in the South Pacific .

This spark is when heavy - batter such as Colossus , Nightcrawler , Storm , and Wolverine join the team . They eventually find the original go - Men on an island call Krakoa and are appalled to realize that the island is actually live and keeping the variation hostage . Even thoughPolarislaunches Krakoa into space during that effect , it ’s reveal that several of its spores have remained behind .

Some of these spore grow to attack the X - man , but others do not . It ’s finally revealed that Beast has build the Jean Grey School for high Learning on top of one of these spores . This late avatar of Krakoa fundamentally serves as the sentient school ground , prove itself to be the honest home defence organisation conceivable .

Avalanche

X-Men Danger

Pyro surrounded by flames

Mystique in X-Men comics in red outfit with pistol in front of a skull

Krakoa X-Men

X-Men