Avengers: Doomsday Trailer Release Date Confirmed

The first trailer for Avengers: Doomsday is almost here. The Marvel Cinematic Universe began Phase 6 this summer with The Fantastic Four: First Steps, and Phase 6 will conclude by 2027 with two Avengers movies.

Collider confirmed the Avengers: Doomsday trailer will premiere before Avatar: Fire and Ash on December 19. Principal photography for this Phase 6 film wrapped on September 19, 2025, directed by Anthony and Joe Russo.

Main Cast and Roles

This film marks the return of Robert Downey Jr. to the MCU, but with a fresh twist. He will portray the iconic villain Victor von Doom, also known as Doom. Downey Jr. is also set to play Doom again in 2027's Avengers: Secret Wars, which has not started filming yet.

Surprise Cast Reveals

During a Marvel Studios surprise live stream, the returning cast was revealed, including several actors from the Fox-Marvel era X-Men films:

Sir Patrick Stewart as Professor X
Sir Ian McKellen as Magneto
James Marsden as Cyclops
Alan Cumming as Nightcrawler
Rebecca Romijn as Mystique

"The mutants' reunion doesn't stop there," highlighting the significant return of iconic X-Men characters to the MCU.

This ensemble promises a major crossover event, blending multiple franchises in Phase 6's climactic stories.

Summary: The upcoming Avengers: Doomsday trailer is set for December 19, featuring Robert Downey Jr. as Doom alongside a star-studded cast including returning X-Men actors, signaling a grand Phase 6 finale.

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Screen Rant — 2025-11-06