Tom Hiddleston confirmed Monday that he will not return as the God of Mischief Loki in Avengers: Age of Ultron, and the possible actor behind the sequel’s title antagonist remains shrouded in secrecy. In the comics, the ever-evolving robot Ultron is the creation of Hank Pym, a.k.a. Ant-Man. However, as revealed at Comic-Con, Ant-Man won’t be featured in Avengers 2 because he will premiere in his own eponymous film. Ultron will instead be the brainchild gone wrong of Tony Stark, a.k.a. Iron Man, a.k.a. the super-rich Robert Downey Jr.