Avengers: Age of Ultron teaser trailer was released on Wednesday, giving viewers a first look at Ultron, the robotic villain voiced by James Spader.

Avengers: Age of Ultron Trailer

Ultron is heavily featured in the teaser trailer, as his threats are used as a voice-over of sorts. In the trailer, Ultron gives a super creepy delivery of the lyrics to “I’ve Got No Strings,” suggesting he is a robot who will no longer be controlled by humans.

Spader, who currently stars on The Blacklist, voices the villainous Ultron in the upcoming Marvel blockbuster, but, to those unfamiliar with the original comics, his character remains a mystery.

Who Is Ultron?

In the Marvel comics, Ultorn was created by Dr. Henry Pym, a character featured in the upcoming Ant-Man film, as an experiment of artificial intelligence. Pym programed Ultron with his brain, meaning that Ultron inherited Pym’s intelligence and madness. Suffering from some kind of extreme Oedipal Complex, Ultron came to hate Pym and the human race.

In the film, Ultron is revived by Tony Stark/Iron Man (Robert Downey Jr.), who, according to the official synopsis, “tries to jumpstart a dormant peacekeeping program.” Instead of bringing peace, Ultron becomes “a terrifying technological villain hell-bent on human extinction.”

In an interview with Total Film, Spader revealed that he sees Ultron as an immature psychopath. “In many ways he’s a child, this character, because he’s a brand new being who’s just come to be. And yet, through artificial intelligence, he has an incredible capacity for knowledge. So he’s a very powerful, smart child,” Spader said.