After more than seven years without an Avengers movie, Marvel finally has what could be its biggest bet since Endgame. Avengers Doomsday hits theaters on Friday, December 18, 2026 in the US, and it brings Robert Downey Jr. back to the MCU, this time as the villain: Doctor Doom. Here’s when it opens, the latest trailer, the live countdown and a look at the confirmed cast.
Avengers Doomsday Release Date
As with most Marvel releases, the movie opens in Latin America and Europe first, and a day later in the US. Here are the dates:
- US: Friday, December 18
- Latin America and Spain: Thursday, December 17
Tickets are already on sale, and if you’re planning to go opening weekend, don’t wait too long. In countries like Germany and the Netherlands, opening-weekend shows filled up within hours, and in the US the movie had already pulled in $35 million in presales by late August.
Marvel’s Live Countdown
If you want to know exactly how much time is left, Marvel Entertainment is running a live stream on YouTube called “Avengers: Doomsday Clock,” which has been ticking since January 13, 2026, counting down to release day:
The clock idea isn’t random, since a countdown has been part of almost all of the movie’s marketing, from the first teasers to the cast announcements.
The Avengers Doomsday Trailer
The latest preview is a Special Look Marvel released in August, focused on Doctor Doom. It opens with a line that says a lot about the character: “He used to be different.” Here it is:
And it’s not the only way Marvel has played with the hype. In December 2025, four teasers ran in theaters ahead of Avatar: Fire and Ash, and one of them confirmed the news fans celebrated most: Chris Evans returning as Steve Rogers.
What Is Avengers Doomsday About?
The story takes place fourteen months after Thunderbolts* and brings together heroes from three different universes. On one side are the Avengers, the Wakandans and the New Avengers of Earth-616; on another, the Fantastic Four of Earth-828; and on top of that, the original X-Men, who arrive from yet another universe. All of them will have to join forces against Doctor Doom.
For me, the most interesting part is that villain. Seeing Robert Downey Jr., the actor who closed out Tony Stark’s story with one of Marvel’s most emotional endings, now playing the enemy is a risky move. And if the Special Look says “He used to be different,” it looks like his past will carry a lot of weight in the story.
Confirmed Cast
Marvel revealed much of the cast in March 2025 with a live stream where chairs with the actors’ names appeared one by one. Here are some of the biggest names:
- Robert Downey Jr. as Doctor Doom
- Chris Evans as Steve Rogers
- Chris Hemsworth as Thor
- Anthony Mackie as Sam Wilson, the new Captain America
- Pedro Pascal as Reed Richards, with Vanessa Kirby, Joseph Quinn and Ebon Moss-Bachrach as the rest of the Fantastic Four
- Florence Pugh as Yelena Belova, with Sebastian Stan, David Harbour, Wyatt Russell and Lewis Pullman from the New Avengers
- Patrick Stewart, Ian McKellen and James Marsden as Professor X, Magneto and Cyclops
- Channing Tatum as Gambit
- Paul Rudd, Simu Liu, Letitia Wright and Tom Hiddleston as Ant-Man, Shang-Chi, Shuri and Loki
The Russo Brothers and What Comes Next
The movie marks the return of Anthony and Joe Russo, the directors of Infinity War and Endgame, with a script by Michael Waldron and Stephen McFeely, among others, and music by Alan Silvestri. Filming took place from April to September 2025 at Pinewood Studios in England, and based on available details, it runs around 165 minutes.
One catch for US audiences: you won’t be able to see it in IMAX, since Dune: Part Three has those screens exclusively for at least three weeks. And for anyone wondering about the end of this era, Avengers Doomsday is the first half of a two-part finale: the Russos are also directing Avengers: Secret Wars, which opens in December 2027 and will close out the Multiverse Saga.
So tell me, what do you think about Robert Downey Jr. as Doctor Doom? Let me know in the comments, and follow me as josegeek on YouTube, Instagram, Facebook, TikTok and X so you never miss any Marvel news.
Source: Marvel Entertainment on YouTube.
