Avengers: Doomsday

From Marvel's official listing:

The New Avengers: Florence Pugh (Yelena), Sebastian Stan (Bucky), Wyatt Russell (John Walker), Hannah John-Kamen (Ghost), David Harbour (Red Guardian), Lewis Pullman (Sentry)

The Fantastic Four: Pedro Pascal (Reed), Vanessa Kirby (Sue), Joseph Quinn (Johnny), Ebon Moss-Bachrach (Ben)

The Fox X-Men: Patrick Stewart (Xavier), Ian McKellen (Magneto), Kelsey Grammer (Beast), Alan Cumming (Nightcrawler), Rebecca Romijn (Mystique), James Marsden (Cyclops), Channing Tatum (Gambit)

Wakanda and Talokan: Letitia Wright (Shuri), Winston Duke (M'Baku), Tenoch Huerta Mejía (Namor), Mabel Cadena (Namora)

Returning MCU: Chris Hemsworth (Thor), Chris Evans (Steve Rogers), Anthony Mackie (Sam Wilson), Paul Rudd (Scott Lang), Kathryn Newton (Cassie Lang), Simu Liu (Shang-Chi), Tom Hiddleston (Loki), Danny Ramirez (Joaquín Torres)

The antagonist: Robert Downey Jr. as Victor von Doom

Charlie Cox's Daredevil has been reported as involved, though he does not appear on the headline Marvel listing above.

Who's notably absent? Tom Holland is not on the list, and neither is Mark Ruffalo.

The reporting consensus is that Spider-Man's absence is deliberate, and that Brand New Day's post-credits — the tracker pinpointing him in deep space — sets up Secret Wars (2027) rather than Doomsday.

Marvel routinely omits cameos from cast lists, so absence isn't proof either way. Also absent: Elizabeth Olsen (Wanda) and Idris Elba (Heimdall), both consistent with those characters being dead.

Released 18 December 2026. Directed by Joe and Anthony Russo. Marvel's own synopsis describes heroes from three distinct universes set on a collision course against an existential threat.

From the trailer: Doom on a throne; Sue Storm narrating that Victor was once different, that he was always the smartest person in the room, that everything he loved was taken from him; the Fantastic Four having a prior history with him; a destroyed New York.

The three universes are Earth-616, the Fantastic Four's retro universe, and the Fox X-Men's Earth-10005.

The most-repeated fan theory is that Doom is a variant of Tony Stark, given the casting. Marvel has not confirmed this and it may be a red herring.

The mechanism is likely incursions — the universe-destroying collisions established in Multiverse of Madness — and Loki holding the multiverse together at the end of time is likely to matter.

Avengers: Secret Wars follows on 17 December 2027 and concludes the Multiverse Saga.

Kevin Feige has ruled out splitting it into two films.