"I had strings but now I'm free. There are no strings on me."~ Ultron's most famous quote "When the dust settles... the only thing living in this world will be metal!"~ Ultron is the titular main antagonist of the Marvel superhero sequel, Avengers: Age of Ultron. He is a self-teaching, self-aware artificial intelligence dormant peacekeeping program hidden in the remains of the Chitauri Invasion and was jump-started by Tony Stark. Possessing an eight-foot-tall advanced robotic body, Ultron was created by Stark with the purpose of protecting Earth from threats, but eventually deemed humanity itself as the greatest threat to Earth and attempted to create a technological singularity by committing genocide against them.He is portrayed and voiced by James Spader who played Stewart Swinton in Wolf.