Avengers: Doomsday Trailer Release Date Confirmed
The wait for the first trailer of Avengers: Doomsday is nearly over. As Marvel’s Cinematic Universe launched Phase 6 this summer with The Fantastic Four: First Steps, the upcoming Avengers movies will conclude this phase by 2027.
Collider confirmed the Avengers: Doomsday trailer will debut in theaters before Avatar: Fire and Ash on December 19, 2025. Principal photography for this Phase 6 film wrapped on September 19, 2025, with Anthony and Joe Russo directing the big team-up.
Returning Cast and New Roles
This ensemble film marks Robert Downey Jr.'s return to the MCU timeline, portraying the iconic Victor von Doom, aka Doom. Downey Jr. is also set to play the villain in Avengers: Secret Wars, scheduled for 2027 but has not yet begun filming.
Star-Studded Cast Revealed
The cast was first revealed during a surprise Marvel Studios live stream, showcasing returning actors. Notably, multiple X-Men stars from the Fox-Marvel era are set to reappear:
- Sir Patrick Stewart as Professor X
- Sir Ian McKellen as Magneto
- James Marsden as Cyclops
- Alan Cumming as Nightcrawler
- Rebecca Romijn as Mystique
"Both Sir Patrick Stewart and Sir Ian McKellen are reprising the roles of Professor X and Magneto, respectively, but the mutants' reunion doesn't stop there."
The 2026 movie will feature this reunion of mutant characters alongside the Avengers team.
Author's summary: The Avengers: Doomsday trailer arrives December 19, 2025, featuring returning MCU and X-Men stars, with Robert Downey Jr. playing the villain Doom, setting the stage for epic Phase 6 conclusions.