X-Men Blue Team
X-Men Deadly Genesis Team

Member(s): Darwin, Kid Vulcan, Petra, Sway

X-Men (Earth X)

Universe/Dimension/Timeline: Earth X (Earth-9997)

Features
Earth X Sketchbook 1.FT

X-Men Gold Team (I)
X-Men Gold Team (II)
X-Men Imposters (I)

Clone/Copy/Impersonator of: X-Men (I)
Individual of: Skrulls

Features
Skrulls! • Secret Invasion Skrulls! 1.FT

X-Men Imposters (II)

Clone/Copy/Impersonator of: X-Men (I)
Individual of: Skrulls

Features
Skrulls! • Secret Invasion Skrulls! 1.FT

X-Men Mansion
X-Nation 2099
X-O Manowar
Xorn
Xorn (AgeOfApo)

Gender: ♂
Alternate version of: Xorn
Universe/Dimension/Timeline: Earth Age of Apocalypse (Earth-295)

Xorr the God-Jewel
X-Patrol

Alternate version of: X-Men (I)
Universe/Dimension/Timeline: Earth Amalgam

Xraven
X-Ray
X-Sentinels
X-Statix
X-Terminated
X-Terminators (I)
X-Terminators (II)
X-Ternals (AgeOfApo)
X-Treme

(Adam X)
Created by: Fabian Nicieza, Greg Capullo, Jeff Johnson
Gender: ♂
Parent(s): D'Ken Neramani

Features
Marvel Legacy: The 1960s-1990s Handbook TPB 1.FT
Marvel Legacy: The 1990s Handbook 1.FT
X-Men: The Ultra Collection 4.FT

X-Treme Sanctions Executive (X.S.E.)
X-Treme X-Men (I)
X-Treme X-Men (II)