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Avengers: Doomsday Is Five Weeks Away: Latest Trailer, Cast, Release Date and Everything We Know

Nerdism title card: Avengers Doomsday trailer and cast guide

The countdown is on. Avengers: Doomsday, the fifth Avengers film and the biggest Marvel event since Endgame, arrives in theaters on December 18, 2026, just over five weeks from now. Marvel Studios is in full marketing mode, and its latest trailer leans into the one thing every fan has been joking about: just how many Captain Americas there are now.

Watch the latest Avengers: Doomsday trailer

Marvel released this 30-second spot on October 25, shortly after a World Series crossover promo, and it passed roughly 20 million views on YouTube in a little over two weeks.

Trailer breakdown: what stands out

  • Thor takes command. Chris Hemsworth’s Thor rallies the heroes with a blunt warning that Doom will tear the world apart unless they stand together. “Stand together” is clearly the campaign’s theme.
  • The Captain America joke. The spot has fun with the crowded shield situation, with Chris Evans’ Steve Rogers, Sam Wilson and even USAgent in the mix. Paul Rudd’s Ant-Man gets to point out how strange that is.
  • Doom stays mysterious. As with earlier footage, Marvel is careful with how much it shows of Robert Downey Jr.’s Victor von Doom.
Chris Hemsworth at the Thor panel at Comic-Con 2010
Chris Hemsworth at Comic-Con in 2010, promoting his first outing as Thor. Sixteen years later, Thor leads the charge in Doomsday. Photo: Ronold Woan / Wikimedia Commons (CC BY-SA 2.0)

How we got here: the Doomsday trailer timeline

  • April 2026: The first full trailer screens exclusively for theater owners at CinemaCon in Las Vegas, with Downey and Evans in attendance.
  • July 2026: Marvel releases the first full trailer publicly, bringing together the Avengers, the X-Men and the Fantastic Four.
  • October 25, 2026: The new “Stand together” spot arrives.

Avengers: Doomsday cast

Marvel has assembled its biggest ensemble yet. Confirmed and featured names include:

  • Robert Downey Jr. as Victor von Doom / Doctor Doom
  • Chris Hemsworth as Thor
  • Chris Evans as Steve Rogers
  • Paul Rudd as Scott Lang / Ant-Man
  • Members of the Fantastic Four, the X-Men and the Thunderbolts
Robert Downey Jr. at San Diego Comic-Con 2014
Robert Downey Jr., who returns to the MCU as Doctor Doom, at Comic-Con in 2014. Photo: Gage Skidmore / Wikimedia Commons (CC BY-SA 2.0)

Joe and Anthony Russo, who directed Infinity War and Endgame, are back behind the camera.

The December 18 showdown with Dune: Part Three

Avengers: Doomsday opens December 18, 2026, the same day as Dune: Part Three
Graphic: Nerdism. Source: Marvel Studios, Warner Bros./Legendary release schedules.

Doomsday isn’t opening alone. Denis Villeneuve’s Dune: Part Three lands on the very same day, setting up the biggest head-to-head release date of the decade. Neither studio has blinked. Expect a long debate over which gets the premium screens, and which one fans see first.

What comes after Doomsday?

Doomsday is the first half of Marvel’s new endgame. Avengers: Secret Wars follows roughly a year later, in December 2027, and is expected to bring the Multiverse Saga to a close.

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Sources: Marvel Entertainment, Hypebeast, Variety, TechSpot.