X-3

Real Name: X-3

Identity/Class: Robot

Occupation: None

Group Membership: None

Affiliations: Sunset Bain, Dr. Oliver Broadhurst, Arno Stark, X-Model robots (X-2, X-7, X-8, X-9, X-10, X-11, X-14, X-15, X-16, X-17, X-19, X-20, X-22, X-24, X-26, X-28, X-29, X-31, X-32, X-37, X-38, X-41, X-42, X-43, X-44, X-45, X-47, X-48, et al.)

Enemies: Machine Man (X-51/Aaron Stack)

Known Relatives: Inapplicable (technically a sibling to each of the X-Model robots)

Aliases: None

Base of Operations: Baintronics facility, New Jersey, USA
formerly the Broadhurst Research Center, Central City, California, USA

First Appearance: Machine Man I#1 (April, 1978)

Powers/Abilities: X-3 has a robotic body built from durable materials which includes telescoping limbs that can extend to 100 feet. X-3 can lift about 2 tons.

Height: Unrevealed (approximately 6')
Weight: Unrevealed (approximately 850 lbs.)
Eyes: Red
Hair: None

History:

(Machine Man I#1 (fb) - BTS) - X-3 was one of the X-Model robots constructed by Dr. Oliver Broadhurst at the Broadhurst Research Center. Unfortunately, X-3, like nearly all of its fellow robots, proved have an unstable robotic brain, suffering from an existential crisis which turned them violent. X-3 had to be dismantled; Dr. Broadhurst kept X-3's head in his office.

(Machine Man I#1) - As Dr. Broadhurst explained what had happened to the X-Model robots to a Washington bureaucrat, he took down X-3's head to use as a prop in explaining how his experiments had failed.

(2020 Machine Man I#1 (fb) - BTS) - Arno Stark and Sunset Bain recovered the remains of X-3 and its fellow X-Model robots, then rebuilt them entirely. Stripping the X-Models of their free will, Arno placed them all under his control with a malware device he installed inside their chests.

(2020 Machine Man I#1) - X-3 and its fellow X-Model robots assaulted Machine Man at a Baintronics facility in New Jersey. The robots swarmed him but Machine Man discovered he could silence the signal being broadcast by Stark and Bain. Without the malware, X-3 and each of his fellow X-Model robots became overwhelmed by the same existential crisis they'd suffered before. When Baintronics robots arrived and attempted to pacify them, the X-Model robots rebelled against them, giving Machine Man the chaos he needed to escape.

Comments: Created by Jack Kirby and Mike Royer.

Profile by Prime Eternal.

CLARIFICATIONS:
X-3 should not be confused with:

• X-7 - X-series robots, went homicidal--2020 Machine Man I#1
• X-7 - Thanos thrall--Captain Marvel I#25
• X-11 2099 - Synthia--Ravage 2099 I#17
• 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 - robot which developed homicidal tendencies--[2001: A Space Odyssey I#8]
• X-34 - starship commanded by Rick Marshall--Tales of Suspense I#29/2
• 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-3'

images: (without ads)
2020 Machine Man I#2, cover (main)
Machine Man I#1, page 5, panel 5 (detached head)

Appearances:
Machine Man I#1 (April, 1978) - Jack Kirby (writer, penciler, editor), Mike Royer (inker)
2020 Machine Man I#1 (April, 2020) - Christos Gage (writer), Andy MacDonald (artist), Darren Shan (editor)

First posted: 08/28/2026
Last updated: 08/28/2026

Any Additions/Corrections? please let me know.

Non-Marvel Copyright info
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