If you dont want to know the origins of Ultron or don't want to spoil the excitement from [The Avengers: Age Of Ultron](movie:293035) don't read any further because I am about to reveal the ''man'' behind the ''mask''.
I have come across an ocean of articles titled who's this Ultron guy and what has he to do with The Avengers. Well I have been sent to earth to explain this matter for people who dont know anything about him or want to know something more about this ultra badass villain.
Dr. Henry Jonathan ''Hank'' Pym a.k.a [Ant-Man](movie:9048) who is one of the founding members of The Avengers who was a famed scientist/adventurer that experimenting in high-intelligence robotics. He created Ultron using his own brain patterns. Ultron became sentient and rebelled, hypnotizing Hank and brainwashing him in to forgetting that Ultron ever existed.
Ultron began to improve quickly and upgrading himself several times to become Ultron-5 and from then on organizing the second incarnation of the Masters of Evil under the guise of the Crimson Crowl and battled Hank and his teammates The Avengers. Ultron is known for his hatred of humans and his will to destroy the human race and let robots take over. Ultron can control any sort of robotic and will arm the Hulkbuster as seen below to fight the Hulk.
Iron Man a.k.a Tony Stark created the Hulkbuster to control the Hulk if anything bad were to happen and Ultron will take over and use the Hulkbuster against the Hulk himself causing the biggest cinematic pleasure to this date. Now The Avengers 2 opens in theaters the 1st of May, 2015 and boy am I counting down the days.