List of Ultimate X-Men characters

The Ultimate X-Men are a team of mutant superheroes that appear in comic books published by Marvel Comics. The codenames listed under "Character" are those used during the time frame of the particular iteration. Characters with more than one codename for that period have them listed chronologically and separated by a slash (/). Bolded names in the most recent iteration published are the current team members.

X-Men
The X-Men have since been divided into different groups:

Colossus's X-Men
Colossus established this branch of the X-Men when its members have been taking the mutant-enhancing drug Banshee.

Emma Frost's Academy of Tomorrow
The Academy of Tomorrow is loosely linked to the X-Men.

Alpha Flight
Each of the members of Alpha Flight have their powers enhanced by the mutant-enhancement drug Banshee.

Other villains

 * Apocalypse
 * Arcade
 * Crimson Dynamo
 * Fenris
 * Hellfire Club (led by Shinobi Shaw)
 * Major Domo
 * Mojo Adams
 * Moira MacTaggert
 * Proteus
 * Omega Red
 * Reavers
 * Sentinels
 * Sinister
 * Stryfe
 * Bolivar Trask
 * Shen-Yin Zorn

X-Men allies

 * Dai Thomas
 * Spider-Man (Peter Parker)
 * Fantastic Four
 * Lilandra and the Shi'ar
 * Daredevil (Matt Murdock)
 * Ultimates

Neutral characters

 * Gambit
 * Spiral
 * Ultimates
 * S.H.I.E.L.D.