Tom Hiddleston has revealed he would "love" the opportunity to play Loki again.
The British actor has reprised the role of Thor's nemesis for the third time in Thor: The Dark World, following his appearances in Thor and Avengers Assemble.
"I love the character and I've played him once a year for the last three years. I keep thinking up these hare-brained schemes of what else he might do," he said.
"I have so many ideas about where I could take him and how he can be developed further. The more I've played him, the more I've got to know him and I feel like I own a part of him now. I have an authority on him."
But Tom admitted his doubts over a Loki spin-off film, saying: "I don't know about that. We'll see. I'd love to one day, but we'll wait and see."
The 32-year-old added: "I think Loki exists in opposition to other people so if he's on his own, he's got nothing to do, no chaos to create. He's just haunted by his demons so we have to find a way of chipping him up and pulling the rug from under his feet to make him interesting."
Tom said he is surprised by Loki's popularity.
"I'd never expected in my wildest expectations that he would be so popular. It's just a huge compliment so I feel really grateful for it," he admitted.
"As a child, I loved bad guys. I loved Jack Nicholson when he played the Joker for Tim Burton, I loved Alan Rickman in Die Hard. To me, they epitomised elegance and charm and their villainy was always entertaining so I wanted to bring that to the character."
Thor: The Dark World opens in cinemas on October 30.