Patrick Stewart's Professor X, Ian McKellan's Magneto and James Marsden's Cyclops all return in Marvel's latest sneak peek at Avengers: Doomsday -- which will also include Rebecca Romijn's Mystique, Alan Cumming's Nightcrawler, Kelsey Grammer's Beast and Channing Tatum's Gambit. The film hits theaters December 18, 2026.
