In a few weeks, viewers will experience former Boston Legal star James Spader as a creepy criminal in buzz-worthy new Global drama The Blacklist; film-goers, however, will soon be seeing him play an even-more-deadly villain in the upcoming Avengers sequel, to be directed by Joss Whedon.

On Thursday, Marvel Comics officially announced that Spader will play comic-book super-villain Ultron, described by¬†TV Guide as “an evil robot who possesses powers including super strength, stamina and reflexes.”

The Avengers sequel is scheduled for release in summer 2015; in the meantime, Spader’s The Blacklist premieres Monday, September 23 on Global.