Actor James Spader of “Avengers: Age of Ultron” is dishing details about the most powerful villain the franchise has seen yet.

During an interview with TotalFilm, Spader explained why he ultimately enjoyed playing Ultron in the second “Avengers” installment.

"There's a humerous aspect to him, which is something that drew me in from the very first conversation I had with Joss [Whedon]," Spader told TotalFilm.

"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."

He also admitted he believes what makes Ultron so scary is his lack of emotion towards anyone or anything.

"Ultron takes abrupt turns in scenes,” he said. "Red isn't pyschopathic but Ultron is. Yes, he is psychopathic. He's really bats**t crazy!"

For those unfamiliar with the premise of "Avengers: Age of Ultron", check out Marvel’s official synopsis for the film below:

Marvel Studios presents “Avengers: Age of Ultron,” the epic follow-up to the biggest Super Hero movie of all time. When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth’s Mightiest Heroes, including Iron Man, Captain America, Thor, The Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure.

Marvel’s “Avengers: Age of Ultron” is slated to hit theaters on May 1, 2015.