Kenneth Branaugh's take on the Norse god Thor doesn't hit theaters until this Friday, but that's hasn't stopped Tom Hiddleston (who plays the villainous Loki) from spilling the goods about The Avengers.

SPOILER ALERT: You've been warned.

For those who have any doubts on who will be the main villain in Joss Whedon's The Avengers, look no further. Speaking with Vulture, Hiddleston explains that it has always been in the cards for him to challenge Earth's mightiest heroes:

"When he was asked about Loki being the primary villain in the movie he said, 'Well, I think it was a plan from the get-go, but it wasn't really dead-set until near the end of Thor. What was wonderful is that about four days after I wrapped on Thor, I went out for a cup of tea with Joss Whedon. We sat down at two o'clock in the afternoon, and we were still sitting there at six o'clock. He said, 'Listen, you've lived with this guy for six months. I want you to spill the beans and tell me all of his dark secrets. Who is this guy? Why is he who he is?'"

"Ken had already shown him a rough cut of the film, and mercifully, everything I had done accorded with Joss's idea of the character, too. I'm really so flattered that Marvel and Josh think I can take them all on. In Avengers, it's going to be me versus seven of them, and I say 'Good luck to them,' frankly... I think Loki's intelligence is never switched off."

You'll have to wait until May 4, 2012, to see Robert Downey Jr., Chris Hemsworth, Samuel L. Jackson, Mark Ruffalo, and Chris Evans team up to stop Loki's sinister plans.

[Via /Film]