Once fans caught their breaths Friday following the debut of the teaser trailer for "Star Wars: The Last Jedi," they were left with plenty of questions, not the least of which is what could lead Luke Skywalker to say, “It’s time for the Jedi … to end.”

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Some theorized that, during his years on self-imposed exile on Ahch-To, Luke just may have embraced the Dark Side of the Force. In an interview with ABC News, "Star Wars" veteran Mark Hamill confirmed that, yes, it's his voice uttering those words -- speculation had also fallen on Adam Driver's Kylo Ren -- and addressed the possibility the hero has followed in the footsteps of his father.

EXCLUSIVE: @HamillHimself says "it's possible... anything is possible" about Luke turning to the Dark Side in @StarWars: #TheLastJedi. #SWCO pic.twitter.com/7FoKpSF9pj

— Good Morning America (@GMA) April 14, 2017

"There's a difference between a teaser and a trailer," he said. "A teaser is supposed to show you dynamic images that heighten your awareness and make you want to see the trailer, but avoid all story points, if at all possible. So I think that's the only story point that's in the teaser, which is Luke saying, 'It's time for the Jedi to end.' Other than that, I can't really describe more, but it was as shocking to me to read what Rian [Johnson] had written as I'm sure it will be for the audience."

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So, about that possible turn to the Dark Side ... "It's possible," Hamill conceded. "Anything's possible."

"When I read [Episode] Eight, I told Rian, 'I fundamentally disagree with virtually everything you've decided about my character,'" he added, "but that might be a good sign, because I was really wrong about Seven. I said, 'When I turn around, the audience is going to holler, because it's such an obvious cheat.' I didn't foresee John Williams' incredible music, shots of Daisy [Ridley], the buildup to it all. So, I was never happier to be wrong."

Written and directed by Rian Johnson, “Star Wars: The Last Jedi,” features returning cast members Mark Hamill as Luke Skywalker, Carrie Fisher as General Leia Organa, Adam Driver as Kylo Ren, Daisy Ridley as Rey, John Boyega as Finn, Oscar Isaac as Poe Dameron, Lupita Nyong’o as Maz Kanata, Domhnall Gleeson as General Hux, Anthony Daniels as C-3P), Gwendoline Christie as Captain Phasma and Andy Serkis as Supreme Leader Snoke, joined by franchise newcomers Kelly Marie Tran as Rose, and Benicio del Toro and Laura Dern in undisclosed roles. The film arrives Dec. 15.