Ultron is a supervillain appearing in American comic books published by Marvel Comics. The character was created by writer Roy Thomas and artist John Buscema, and initially made his debut as an unnamed character in The Avengers  (July 1968), with his first full appearance in The Avengers (August 1968).

What is Ultron's real name?
In the Mighty Avengers, Ultron is shown to infiltrate Jocasta and the Infinite Avengers Mansion. He names himself Ultron Pym and seeks to kill and replace his father before using his Infinite Mansion to conquer the universe.


What is Ultron powered by?
Since his Ultron-6 body, Ultron incorporates Adamantium (the strongest metal, which also coats Wolverine's skeleton) into his frame, which is powered by an internal nuclear reactor.


Why is Ultron so powerful?
In age of Ultron, Avengers managed to take vision's body from him but they failed this time. Another reason is the presence of all the infinity stones, by having these he has become nearly immortal and really really powerful. These gave him power enough to sense beings like the watcher.
How was Ultron born?
Ultron was an Artificial Intelligence Peacekeeping Program created by Tony Stark using the decrypted code derived from the Mind Stone encased within Loki's Scepter; Stark retooled this code with the help of Bruce Banner.
How did Ultron get his body?
Ultron then informed Cho that he intended to use the vibranium to create the perfect, synthetic, humanoid body for Ultron, made from the vibranium