X-7

Real Name: X-7

Identity/Class: Extraterrestrial robot

Occupation: Mercenary

Group Membership: Thanos Thralls

Affiliations: Thanos

Enemies: Captain Marvel (Mar-Vell)

Known Relatives: None

Aliases: None

Base of Operations: Unrevealed; possibly Titan; apparently mobile in outer space

First Appearance: Captain Marvel I#25 (March, 1973)

Powers/Abilities: X-7 is a robot built from unidentified materials; it likely has a higher degree of resistance to injury than a human. It used a communication device inside its head/helmet to keep in contact with Thanos on Titan.

Height: Unrevealed (approximately 6')
Weight: Unrevealed (approximately 300 lbs.)
Eyes: None visible
Hair: None

History:

(Captain Marvel I#25) - X-7 and two other extraterrestrials were mercenaries employed by Thanos. Thanos dispatched them both to Manhattan to engage Captain Marvel in battle and test his abilities. X-7 and its allies fought Captain Marvel and determined he was no longer as powerful as he'd been in the past. X-7 was knocked down by Captain Marvel, but it used his communication device to notify Thanos on Titan that their exercise was completed, then requested to be teleported away. Thanos complied, teleporting X-7 and his two allies away (likely back to Titan).

Comments: Created by Mike Friedrich, Jim Starlin and Chic Stone.

Profile by Prime Eternal.

CLARIFICATIONS:
X-7 should not be confused with:

• X-7 - X-series robots, went homicidal--2020 Machine Man I#1
• X-11 2099 - Synthia--Ravage 2099 I#17
• X-13 - monstrous robot that ran amok--Strange Tales I#93
• X-23 - X-series robots--[2001: A Space Odyssey#8]
• X-23 - designation used by the Ultraverse's Aladdin--Rune II#6
• X-23 (Laura Kinney) - female genetic twin of Wolverine--NYX#3
• X-29 - precursor of X-51, developed homicidal tendencies--[2001: A Space Odyssey I#8]
• X-35 - robot which developed homicidal tendencies, resulting in immediate destruction of all robots save X-51--2001: A Space Odyssey I#8
• X-36 - 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#13
• X-51 (Aaron Stack) - robot built by Able Stack, alias Machine Man--2001: A Space Odyssey#8
• X-99 - atomic invertor--GLA I#2
• any other 'X-7'

images: (without ads)
Captain Marvel I#25, page 1 (main)
Captain Marvel I#25, page 2, panel 5 (face)

Appearances:
Captain Marvel I#25 (March, 1973) - Mike Friedrich (writer), Jim Starlin (penciler), Chic Stone (inker), Roy Thomas (editor)

First posted: 07/03/2026
Last updated: 07/03/2026

Any Additions/Corrections? please let me know.

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