Marvel drops the official Avengers: Doomsday X-Men teaser

After spending a week playing exclusively in theatres ahead of Avatar: Fire and Ash screenings, Marvel has finally dropped the X-Men teaser for Avengers: Doomsday online for everyone to see. And yeah, it’s exactly as wild as the leaks suggested.

This third teaser brings back Patrick Stewart as Professor Charles Xavier, Ian McKellen as Magneto, and James Marsden as Cyclops. It’s also the first time these characters will properly cross paths with the Avengers, the Fantastic Four, and basically everyone else in Marvel’s roster.

Professor X, Magneto, and Cyclops are finally here

The trailer opens at Xavier’s School for Gifted Youngsters, though “school” might be generous at this point. The place looks abandoned and wrecked, which immediately sets a darker tone than your average MCU fare. Magneto delivers some heavy narration about death being inevitable, asking “who will you be when you close your eyes?”

There’s a genuinely touching moment where Xavier and Magneto are seated across from each other at a chessboard, which longtime fans will recognise as a callback to X-Men: The Last Stand. The two old friends embrace, and for a second it feels peaceful.

Sadly, that doesn’t last. Cyclops then rips off his visor and unleashes an absolutely ridiculous optic blast, way bigger than anything we saw in those original films.

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The confirmed X-Men roster for this film is stacked. Beyond the three we see in the teaser, Kelsey Grammer returns as Beast, Alan Cumming is back as Nightcrawler, Rebecca Romijn reprises Mystique, and Channing Tatum is finally getting another shot at Gambit after that cancelled solo movie. They’ll be joining an already packed cast that includes Robert Downey Jr. returning not as Tony Stark but as Victor Von Doom.

Avengers: Doomsday hits theatres on December 18, 2026.