X ( ) - Brotherhood, title for its leader, formerly held by Hoffman and Marshal
    (app-hoff)--Brotherhood#1, 7 (1-9

X - "Thanosi," patterned after Professor X, deluded into accepting oblivion by Moondragon
    *D* (app-thanosi)--Infinity Abyss#1 (2-5

X the MARVEL (Willie Dance) - professional wrestler, briefly empowered by formula patterned after Super Soldier serum (designed by Dr. Klemph), battled Luke Cage/Power Man
    Enhanced strength and durability, skilled wrestler
    FLYING BOY* (app)--Power Man I#27 (27(fb), 27

X, the THING That LIVED - magical creature of the imagination created by Charles Bentley using a typewriter he had obtained from Europe, destroyed when Bentley destroyed the typewriter, re-created when written into Manga story by Tomi, defeated by Big Hero 6 and Alpha Flight
    transform atomic structure into any form or shape
    X, the UNKNOWABLE (Marvel Monsters, app)--Tales to Astonish I#20; Fear#2 (Warlock & Infinity Watch#7, [Alpha Flight II#17(fb)], 17

X, NATALIE - see NATALIE X of Earth-807128--Fantastic Four#557

X-11 2099 ( ) - Synthia
    --Ravage 2099#17 (18,19

X-13 - monstrous robot that ran amok
    --Strange Tales I#93

X-23 - X-series robots
    --[2001: A Space Odyssey#8]

X-23 - see WARLOCK, ADAM.
    Designation used by the Ultraverse's Aladdin
    --Rune II#6

X-23 (Laura Kinney) - Cyclops's X-Force, District X, female genetic twin of Wolverine, designed and delivered by Sarah Kinney, used and sold as an assassin by Zander Rice, mentally programmed to attack Weapon X
    Enhanced senses and healing, two claws in each hand, one in each foot
    Laura X (OH: X2005, 198)--NYX#3 (X-23#1-6, Uncanny X-Men#451(fb), NYX#3-7, UX450,451, X-Men II#165, Marvel Team-Up III#5,6, X-Men Unlimited II#8?, UX455-459, 460, Captain Universe/X-23#1, New X-Men#20-23, 24(fb), 24, X-Men II#190
    , Cable II#6 (fb)

• X-23 of "Earth-6215" - "League of Losers," survived Chronok's assaults, traveled forward to Earth-2992 @ 2099 and slew that era's Chronok, remained in that reality
      --Marvel Team-Up III#15? (16-18, 25

X-29 - precursor of X-51,developed homicidal tendencies, led uprising of other x-series robots, destroyed, resulted in destruct mechanism being placed in all successive units at creation
    --[2001: A Space Odyssey#], X-51#12

X-35 - robot which developed homicidal tendencies, resulting in immediate destruction of all robots save X-51
    --2001 #8d

X-36 of Earth-??? @ 2090 - malfunctioning robot, terminated
    --Strange Tales I#99

X-50 - robot built by Able Stack, given a face and trained beside X-Men in futile effort to prevent it from going insane
    --X-Men: First Class II#

X-51 - robot built by Able Stack, only one in series of sentient robots that didn’t go insane, Stack sacrificed himself to save him from destruction, rebuilt self after destroyed in battle against Red Skull, utilized nanotechnology + Sentinel programming obtained from Bastion, took over form of Life Model Decoy, programmed it to locate the rest of his body, succeeded in purging Sentinel programming from mind, mutated by Celestials and transported across the Monolith
    -Mr. MACHINE*, MACHINE MAN*, Jack Kubrick--2001: A Space Odyssey#8 (X-51#3(fb1-3)/12(fb1), 2001:ASO#8->Mr. machine, machine man.
    X-51#2(fb2), 1(fb1-4), 1, 2, 3, 4,5, 6, 7-9, Avengers III#86-88

• X-51 of Earth-9997 - alternate dimensional counterpart, chosen as successor to Uatu as the Watcher of earth after Uatu was blinded, rebelled against him to oppose Celestials plans to destroy Earth, removed sensory devices from Uatu.
      outer shell removed
      WATCHMAN (sktech)--Earth X Preview, EX#0 (1-12

X-99 - see ATOMIC INVERTER X-99 PROTOTYPE--GLA#2

X-BABIES (Boyo, Charlie X, Colossusus, Creepy Crawler, Cyke, Psychilde, Shadowkitty, Shower, Sugar, Wolvie, Archangel, Beast, Bishop, Dazzler, Gambit, Havok, Iceman, Longshot, Phoenix/Jean, Sunfire, Thunderbird)
    - child versions of x-men created by mojo, seemed to have been killed by "age of apocalypse" versions, but later showed up alive
    (OH: AZ#12, net)--Uncanny X-Men Annual#12/2 (Excalibur: Mojo Mayhem, X-Men II#46,47, X-Babies#1, X-Babies Reborn, X-Men Unlimited#32, [ Uncanny X-Men#393(fb)], XMU#37, Exiles#8

• EXCALIBUR (Captain Britain, Meggan, Phoenix, Shadowcat, Widget) -
      --X-Babies#1
• NEW MUTANTS (Cannonball, Karma, Magik, Magma, Mirage, Sunspot, Warlock, Wolfsbane) -
      --X-Babies#1

X-BEAST - Manmaker, created by their chaos force technology
    *D*--Die-Cut#1 (2-4d)

X BUILDING of Earth-Amalgam - East River hq of X-Patrol
    (app-amu)--X-Patrol#1

X-CELL (Abyss, Blob, Callisto, Elijah Cross, Fatale, Marrow, Reaper)
    - group of former mutants who lost powers on M-Day, gathered by Elijah Cross, blamed government for loss of power, sought re-powering by Quicksilver until Cross killed by this
    (XM: MC-MF)--[X-Factor III#17], 18 (19-20

X-COM (male versions of X-Men (Kit, Marvel Boy, Polaris, Psylocke, Rogue, Storm))
    - alternate dimensional counterparts of X-Men
    eXecutive action Committee
    --Uncanny X-Men#462

X-COPTER - vehicle used by X-Men in early adventures, destroyed by Juggernaut
    --X-Men I#11 (19, 24, 27, 33d

X-CORPS (Avalanche, Banshee, Blob, Feral, Fever Pitch, Husk, Jubilee, M, Madrox, Mastermind, Proudstar, Radius, Sunfire, Sunpyre, Surge/Mystique, Thornn)
    -paramilitary mutant enforcement league, formed by banshee, usurped from within by mystique
    --Uncanny X-Men#401 (402-406

X-CORPS (Cannonball, Darkstar, Empath, M, Lifeguard, Madrox, Rictor, Sabra, Siryn, Skitz, Stringfellow, Sunspot, Thunderbird, + redhead fem)
    -original bought out and reformed by Xavier, based in Paris
    --X-Men II#128 (129, 130, X-Treme X-Men#31-35

X-CUTIONER (Carl Denti) - former FBI agent, former partner of Fred Duncan, pilfered advanced weaponry (Z’Nox, Cultha, etc) from his secret storage, dedicated life to eliminating perceived mutant threat, lost armor when fled exploding ship
    (card,net)--Uncanny X-Men Annual#17( Uncanny X-Men#310, X-Man#11, Generation X#17(fb),16,17, Punisher III#12-16, Gambit III#1,2,4,5, 17-19, Gambit Annual 2001,Gam21(denti)

X-CUTIONER - see NEW SON.
    wore armor and attempted to kill Gambit during assassination game in effort to push him to control his power
    --Gambit III#17 (23(fb), 17,18

XF5U-2 FLYING FLAPJACK - @ World War II, developed by Slade Corporation, flown by Skyhawks, five versions seen
    (app-skywolves)--Marvel Fanfare I#16 (16/2, 17

X-FACTOR (Angel, Beast, Cyclops, Iceman, Marvel Girl, Archangel, Caliban)
    - originally composed of five founding members of original x-men, originally posed as mutant hunters in order to locate mutants for training,later merged back into xmen
    (D#15, OH: Teams)--X-Factor I#1 (
    XFac28, Strange Tales II#18, Cloak & Dagger III#1
    XFac51(New Mutants I#88)

• X-FACTOR's ship - see PROSH.
      intelligent ship, creation of celestials, formerly used by apocalypse
      (U#8)--X-Factor I#15

X-FACTOR (Havok, Madrox/Multiple Man, Polaris, Quicksilver, Strong Guy, Wolfsbane, Val Cooper, Forge, Mystique, Wild Child, Shard (Bishop), Sabretooth)
    - government agents, dissolved following Havok’s apparent death
    --X-Factor I#71 (
    XFac111, X-Men: Prime, XFac112,
    Uncanny X-Men#339,
    Marvel Fanfare II#6,
    XFac125-135, X-Factor minus 1, XFac136-149)

X-FACTOR INVESTIGATIONS (Madrox, Layla Miller, Rictor, Siryn, Strong Guy, Wolfsbane)
    - District X, private investigators
    XXX INVESTIGATIONS (XM: MC-MF, Civil War, CWBDR)--Madrox#5 (X-Factor III#1-6, 7, 8-9, 10-12, 13, 14-17, 18-20, 21-22, WWH: X-Men#2-3
    Uncanny X-Men#492, XFac25, NXM44, X205, [UX493], XFac26, NX45, X206, UX494, XFac27, NX46, X207
    XFac28-31, 32

X-FORCE of M Branch (Colossus (Wall), Dazzler, Havok (Bedlam), Longshot, Psylocke, Rogue, Storm (Tempest), Wolverine)
    - us soldiers mutated by m branch in effort to create superhuman government agents, many died from radiation poisoning, others tried to escape, government sought to stop them so they could learn what went wrong from autopsies, three escaped
    (OH: Teams - reference, app)--[Cloak+Dagger III#9],10 (10(fb), [9],10

X-FORCE (Boomer, Cable, Cannonball, Domino, Feral, Shatterstar, Warpath, Siryn, Sunspot, Caliban, Meltdown, Bedlam, Pete Wisdom)
    - team of young adult mutants, originally formed as a combat unit under cable from remnants of new mutants, dissolved after apparent deaths while battling romany wisdom and worldengine
    (OH: Teams)--X-Force#1 (
    Warheads#4,5, X-Force#11
    XFor43, X-Men: Prime, Cable II#21, XFor44,
    XFor51, Cab29, Uncanny X-Men#331,
    XFor56, UX335, X-Man#18, XFor57, Cab36, XFor58, Onslaught: Marvel Universe, X-Force/Cable Annual 1996, XFor59-61, X-Men Annual 1996,
    XFor78-80, 81, Deadpool III#22, XFor82-84, X-Force/Champions Annual 1998, XFor85,86, Thunderbolts#25, X-Men Unlimited#23, XFor87-91, Contest of Champions II#1,[2,3],4,[5], UX375, Cable73-75, XFor92,93, 94,95, X-Force Annual 1999, XFor96, 97,98, 99,100, UX379, XFor101, X-Men II#99, XFor106(fb1), 107(fb), 108(fb2), [109(fb1)], 102-105, 106-109, UX388, XFor110-113, 114,115, 117, X-Force II#1-6, Cable/Deadpool#18

• X-FORCE's MURDERWORLD Headquarters - former base of arcade, used by x-force until discovered and destroyed by arcade
      --X-Force#40 (
      X-Men: Prime(d))

X-FORCE – see X-STATIX.
    (Battering Ram, Doop, Gin Genie, La Nuit, Plazm, Dr. Strange, Sorcerer Supreme#37 Dr. Strange, Sorcerer Supreme#37 Sluk, U-Go-Girl, Zeitgeist, Anarchist, Bloke, Orphan, Phat, St. Anna, Vivisector, Spike, Dead Girl; "the Masked Mutant," "Red Foxx," "The Visor")
    - government sponsored group, have publicity agent, most of original group killed during assault on kidnappers, eventually changed name to become X-Statix
    (app)--X-Force I#116 ([X-Men Encyclopedia (fb)], [Official Handbook of the Marvel Universe: Teams(fb)], X-Statix#10 (fb), X-Force#116 (fb), 116-120, Thunderbolts#57, XFor121,122, XFor123, 124, [Brotherhood#8], 9, XFor125 (fb), 125-127, 128(fb), 128, Weapon X#½(fb), XFor129->x-statix)

X-FORCE (Caliban, Hepzibah, Warpath, Wolfsbane, Wolverine, X-23)
    - group of hunters and trackers, sent by Cyclops to track down the mutant infant
    --Uncanny X-Men#493 (XFac26, NX45, X206, UX494, XFac27, NX46, X207, X-Force III#1, Cable II#6 (fb), X-Force III#1-5, 6 (fb), 6, 7-10

X-FORCE (Doop, Psyclops, Temptress)
    - part of a television show filming Doop's adventures
    (app)--X-Men Millennial Visions 2001 - "X-Force: Primetime Doop"

X-HUMED (Black Bishop, Changeling, Living Diamond, Scaleface)
    - dead mutants unearthed and controlled as zombies by black talon (Barone)
    (app--She-Hulk II#34 (35

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