Biographical information
Real name


Physical description




Personal information

Baron Mordo

Production details
First appearance

Strange Little Halloween (isllusion)

Last appearance

Strange Little Halloween (isllusion)

Ultron is an evil self-aware artificial intelligence and an enemy of the Avengers.

Physical Appearance



Powers and Abilities

  • Artificially Advanced Intellect: He is a robot programmed with all aspects of engineering, sciences, robotics & nanotechnologies. He is also a brilliant strategist, being able to create complex strategies & distractions easily. Since absorbing the Scientist Supreme, he has become far more "chatty", as Tony puts it, but retains his genius.
  • Viral Transferal: Ultron is like a virus in the internet, thus can use such a way to escape a nearly destroyed body in order to make himself virtually indestructible.
  • A.I.M. Supreme-Adaptoid Physiology: Thanks to absorbing the remnants of the A.I.M. Supreme-Adaptoid technology as well as the Scientist Supreme himself, Ultron gained a new form which appeared to be more powerful than his previous ones. However, it is considerably different from the Super-Adaptoid he previously took over, though some of its characteristics were possibly carried over from the original design. This new body is also the most "human" appearance Ultron has ever taken.
    • Advanced Durability: As with the previous Adaptoid body, this version of Ultron appears to be nigh-indestructible, able to withstand blows from Hulk and Thor's hammer, Mjolnir. He also walked off missiles from Iron Man.
    • Regeneration Systems: He has the Adaptoid's regeneration systems. This was seen when he absorbed only a small amount of the Adaptoid, & them managed to "regenerate" an entirely new body for himself within a few seconds.
    • Advanced Strength: Without having to use adaption systems, Ultron was powerful enough to simply backhand the Hulk; this may have been due to the fact that the Supreme Adaptoid mimicked the Hulk's strength, however.
    • Multi-purpose Mouth Beam: Housed in Ultron's maw is a beam emitter that can serve several purposes.
      • Hacking Beam: It can fire a beam that transmits a virus that gives him control over any electronics surrounding him, such as Black Widow's stingers, Falcon's harness, Hawkeye's quiver, and Iron Man's armor.
      • Repulsor Blasts: It also fires a beam similar to Iron Man's repulsors that was able to knock Thor back several feet.
    • Flight: Ultron integrated thrusters into his new design, though thanks to his increase in mass, he is not as fast as his Arsenal body in terms of speed.


 Season  1 2 3 4 5 6 7 891011121314151617181920212223242526 Total
Season 1 0
Season 2 0
Season 3 0
Season 4 i 1
Overall 1

i - illusion


Background in other media

  • Sixth animated appearance of Ultron, the first in The Avengers: United They Stand, the second in The Super Hero Squad Show, the third in The Avengers: Earth's Mightiest Heroes, the fourth in Marvel Disk Wars: The Avengers and the fifth in Avengers Assemble
    • Due to Avengers Assemble and Ultimate Spider-Man TV series being in the same universe, this the second shared animated universe series appearance of Ultron. He is currently the main antagonist of the third season of Avengers Assemble: Ultron Revolution.