Ultron is a supervillain appearing in American comic books published by Marvel Comics. Created by writer Roy Thomas and artist John Buscema, the character first appeared as an unnamed character in The Avengers #54, with his first full appearance in The Avengers #55. He is a self-aware and highly intelligent artificial intelligence in a robot body who develops a god complex and a grudge against his creator Hank Pym. His goal to destroy humanity in a shortsighted attempt at creating world peace has brought him into repeated conflict with the Avengers. Stories often end in Ultron's apparent destruction, only for the character to be resurrected in new forms.
Ultron as seen in the 2013 storyline Age of Ultron.
Carlos Pacheco sketching a six-armed version of Ultron.
Ultron as depicted in The Avengers: Earth's Mightiest Heroes.
A supervillain or supercriminal is a variant of the villainous stock character. It is sometimes found in comic books, and may possess superhuman abilities. A supervillain is the antithesis of a superhero.
Supervillains of the United Underworld from the 1966 film Batman, a film adaptation of the comic books based on Batman and the 1960s television show of the same name. From left to right: Penguin, Riddler, Catwoman, and Joker.