Avengers: Doomsday Trailer Release Date Confirmed

The long wait for the first official Avengers: Doomsday trailer is almost over. As Marvel’s Phase 6 began this summer with The Fantastic Four: First Steps, the current chapter of the Marvel Cinematic Universe is set to conclude by 2027 with two major Avengers releases.

Trailer Premiere and Production Update

Collider confirmed that the Avengers: Doomsday trailer will premiere on December 19, ahead of Avatar: Fire and Ash. Filming wrapped on September 19, 2025, with Anthony and Joe Russo directing the large-scale superhero ensemble.

Cast and Character Details

This new installment introduces an unexpected return — Robert Downey Jr. is coming back to the MCU, but not as Tony Stark. Instead, he will portray Victor von Doom, known as Doctor Doom. Downey Jr. will reportedly continue in the role for the 2027 film Avengers: Secret Wars, which has not yet started filming.

Surprise Cast Reveals

The cast lineup was unveiled during a surprise Marvel Studios live-stream that showcased returning stars from both recent and legacy Marvel 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 Avengers: Doomsday cast was first revealed during a surprise live-stream from Marvel Studios, where several returning actors were announced.”

Final Notes

The crossover of the MCU and the Fox-Marvel legacy offers fans a massive multiverse event, uniting generations of Marvel heroes and villains in one cinematic chapter.

Author’s Summary: Marvel confirmed the Avengers: Doomsday trailer launches December 19, reuniting MCU and classic X-Men actors, with Robert Downey Jr. stepping into the iconic role of Doctor Doom.

Screen Rant — 2025-11-06