Movie · Phase 6

Avengers: Doomsday

2026

CONFIRMED: Marvel's official logline states that Doomsday follows 'beloved heroes from three distinct universes' set on a deadly collision course, facing an existential threat unlike anything they…

The Multiverse SagaUpcoming
Avengers: Doomsday (2026) poster — Marvel movie

The story

CONFIRMED: Marvel's official logline states that Doomsday follows 'beloved heroes from three distinct universes' set on a deadly collision course, facing an existential threat unlike anything they have encountered. Anthony and Joe Russo direct from a Michael Waldron screenplay, Robert Downey Jr. plays Doctor Doom, and Marvel's own cast list confirms an ensemble spanning the Avengers, the Thunderbolts, the Fantastic Four, Wakanda, Talokan and the Fox-era X-Men, including Patrick Stewart, Ian McKellen, James Marsden, Kelsey Grammer, Alan Cumming, Rebecca Romijn and Channing Tatum. The film opens 18 December 2026, having moved from its original 1 May 2026 date, and the first trailer arrived in July 2026.

CONFIRMED, from San Diego Comic-Con 2026: Chris Evans returns as Steve Rogers — but not as Captain America. Anthony Mackie, in a Variety interview after the panel, put it plainly: "Steve Rogers is returning, not Captain America... in the comic book, Steve Rogers becomes Nomad," pointing at the 1970s comics identity Rogers adopted after giving up the shield, which this site's own Captain America profile already lists among his aliases. Evans himself said at CinemaCon 2026: "I said I would only come back if there was a real reason, and in Doomsday, there's a very real reason why these heroes need Steve Rogers." Hayley Atwell is also confirmed returning as Peggy Carter, revealed at the same Hall H panel; Atwell has described the film as "an existential epic" and teased Peggy responding to that scale "in a very different light than fans have seen before."

REPORTED, NOT CONFIRMED: Neither Marvel nor the cast has explained how an elderly Steve Rogers — last seen living out a full life with Peggy Carter after Endgame — fits into Doomsday's story, or whether Evans and Atwell are playing the same characters audiences said goodbye to or multiverse variants. Nothing official has been said about Doom's origin, whether he is a Tony Stark variant, how the three universes are designated, or which characters survive. Runtime, act structure and the mechanics of the incursion remain entirely unconfirmed, and scooper claims about specific deaths should be treated as rumour.

Key facts

Release date
18 Dec 2026
Status
Upcoming
Phase
Phase 6
Saga
The Multiverse Saga
Director
Anthony Russo, Joe Russo
Writers
Michael Waldron
Timeline placement
Expected to follow Thunderbolts* and The Fantastic Four: First Steps, converging multiple universes on the main MCU timeline

Cast

ActorRole
Robert Downey Jr.Victor von Doom / Doctor Doom
Chris EvansSteve Rogers
Chris HemsworthThor
Pedro PascalReed Richards / Mister Fantastic
Vanessa KirbySue Storm / Invisible Woman
Anthony MackieSam Wilson / Captain America
Florence PughYelena Belova
Patrick StewartCharles Xavier / Professor X
Ian McKellenErik Lehnsherr / Magneto
Channing TatumRemy LeBeau / Gambit
Tom HiddlestonLoki
Sebastian StanBucky Barnes
Hayley AtwellPeggy Carter

Characters

Ghost (Ava Starr in the MCU; unrevealed in the comics) — Marvel anti-hero character art

Ghost

Ava Starr in the MCU; unrevealed in the comics

Easter eggs

  • Robert Downey Jr. returning as Doctor Doom rather than Iron Man is Marvel's most audacious recasting, announced on stage at San Diego Comic-Con in July 2024 with the Russos.
  • Patrick Stewart, Ian McKellen, James Marsden and Rebecca Romijn returning marks the first time the original 2000 X-Men cast has assembled since 2014's Days of Future Past.
  • Channing Tatum's Gambit carries over from Deadpool & Wolverine, where he finally played a role Fox had spent a decade failing to make.
  • Kelsey Grammer's Beast pays off The Marvels' post-credits scene, in which Monica Rambeau woke in a universe with an intact X-Men.
  • The Fantastic Four's inclusion follows directly from First Steps' Earth-828 setting and the mid-credits Doom reveal.
  • Doomsday's premise of colliding universes draws on Jonathan Hickman's Avengers and Secret Wars incursion arc, which Doctor Strange in the Multiverse of Madness first named on screen.
  • The title replaced Avengers: The Kang Dynasty after Marvel dropped Jonathan Majors in 2024 and rebuilt the saga around Doom.

Trivia

  • Marvel moved the film from 1 May 2026 to 18 December 2026, giving the Russos additional post-production time and clearing the summer for Spider-Man.
  • Robert Downey Jr.'s casting as Doom was revealed at San Diego Comic-Con in 2024, five years after Tony Stark's death.
  • It replaced Avengers: The Kang Dynasty, which was scrapped along with Jeff Loveness' screenplay.
  • Michael Waldron, who wrote Loki season one and Multiverse of Madness, is writing both Doomsday and Secret Wars.
  • Marvel announced the cast in a five-hour livestream in March 2025, revealing names on director's chairs one at a time.
  • Production was based at Pinewood Studios in the UK, with the Russos returning to Marvel for the first time since Endgame.
  • The first trailer dropped in July 2026, roughly five months ahead of release.
  • Chris Evans' return as Steve Rogers and Hayley Atwell's return as Peggy Carter were both confirmed at the same San Diego Comic-Con 2026 Hall H panel, ending years of Marvel deliberately not naming Evans' role.

Reviews

The MarvelGossips verdict

Unreleased at the time of writing. Marvel is betting the saga on a recast lead villain, a cast list longer than Infinity War's and an audience that has spent four years being told the multiverse matters. The Russos are the right people for the logistics, and the open question is whether any of the three universes will feel like a place rather than a corridor.

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Frequently asked

When is Avengers: Doomsday released?
18 December 2026, confirmed on marvel.com. It was originally dated 1 May 2026 before Marvel moved it to the holiday corridor.
Is Robert Downey Jr. playing Iron Man again?
No. He plays Victor von Doom, announced at San Diego Comic-Con in July 2024. Marvel has not explained the in-universe relationship, if any, between Doom and Tony Stark, and every theory about it is unconfirmed.
Which X-Men are confirmed?
Marvel's own cast list includes Patrick Stewart as Professor X, Ian McKellen as Magneto, James Marsden as Cyclops, Kelsey Grammer as Beast, Alan Cumming as Nightcrawler, Rebecca Romijn as Mystique and Channing Tatum as Gambit. These are Fox-era actors, not the separate MCU X-Men reboot cast.
What role is Chris Evans playing?
Steve Rogers, confirmed at San Diego Comic-Con 2026 — but explicitly not as Captain America, a mantle the film keeps with Anthony Mackie's Sam Wilson. Anthony Mackie has pointed fans toward the comics' Nomad identity, which Rogers adopted after giving up the shield in the 1970s, though Marvel itself hasn't used that name for the film role.
Is Hayley Atwell in Avengers: Doomsday?
Yes, confirmed at the same San Diego Comic-Con 2026 panel as Chris Evans' return. She's returning as Peggy Carter. Marvel hasn't said whether this is the Peggy Rogers lived his life with after Endgame or a multiverse variant, and Atwell has only teased that audiences will see her "in a very different light than fans have seen before."