Avengers Doomsday teaser: X-Men take center stage in fourth preview
Marvel Studios released the fourth teaser of Avengers: Doomsday on Tuesday. It gave fans their first glimpse of the X-Men’s integration into the Marvel Cinematic Universe and promised important crossover moments.

Marvel Studios has released an exciting teaser Avengers: DoomsdayWhich is the fourth and final entry in the film’s trailer series. This latest teaser-trailer is part of Disney’s strategy of introducing new footage every four weeks. It gives fans a detailed glimpse of what is expected to be a significant event in the Marvel Cinematic Universe (MCU).
The highlight of the new teaser is the dramatic introduction and appearance of the X-Men, hinting at their long-awaited impact on the MCU story. Audiences are treated to scenes that foreshadow the arrival of the X-Men, an event that has been anticipated as a game-changing moment for the franchise.
This teaser follows the widely discussed return of the classic 20th Century Fox X-Men cast.
Earlier this year, a chair reveal sequence featuring Patrick Stewart, Ian McKellen, Kelsey Grammer, Alan Cumming, Rebecca Romijn and James Marsden confirmed the studio’s commitment to honoring its cinematic legacy. These actors have been missing from superhero films for nearly twenty-five years, with only Stewart and Grammer having appeared briefly in previous MCU projects.
The returning cast is featured in comic book-accurate costumes, including characters such as Professor X, Magneto, Beast, Nightcrawler, Mystique, and Cyclops. This crossover is designed to pay homage to the legacy of the X-Men films while integrating them into the MCU’s multiverse saga.
Additional appearances from franchise veterans are also expected, including Benedict Cumberbatch, Letitia Wright, Tenoch Huerta, Simu Liu, Paul Rudd, Tom Hiddleston and the Thunderbolts, Fantastic Four and Channing Tatum’s Gambit.
Robert Downey Jr.’s limited, but prominent role as Doom has been garnering attention even before the film’s release. His portrayal of a supervillain reportedly secured by a record contract has heightened anticipation Avengers: DoomsdayWhich has already been named one of the most eagerly awaited titles of 2026.
Doom’s connection to the Fantastic Four was hinted at earlier fantastic four first stageWhere Downey Jr.’s character appeared in a mid-credits scene involving Reed Richards and Sue Storm.
Directed by Anthony and Joe Russo and written by Michael Waldron and Stephen McFeely, Avengers: Doomsday Set for worldwide theatrical release on December 18, 2026.





