The X-Men Return in the New Avengers: Doomsday Trailer

Who would you be when you close your eyes? Ahead of the highly anticipated MCU Phase Six film, Marvel has released the third official Avengers: Doomsday teaser trailer — this time featuring the X-Men. This new teaser follows the first and second, which featured Steve Rogers and Thor, respectively.

Watch the Avengers: Doomsday X-Men trailer here or on Marvel Entertainment’s official YouTube channel. Then, learn more about the movie below.

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What is the role of the X-Men in Avengers: Doomsday?

The upcoming Marvel movie will be directed by Anthony Russo and Joe Russo. It is the fifth installment in the Avengers movie series, following Avengers: Endgame — which the Russos also directed, along with Avengers: Infinity War, Captain America: Civil War, and Captain America: The Winter Soldier.

At this time, very few plot details are known. However, in terms of continuity, Doomsday ties in to the events of Thunderbolts* as well as The Fantastic Four: First Steps. Doomsday is likely quite the Multiverse-altering event, and will have a direct sequel in Secret Wars (set to release in December 2027). Based on the first two teasers, we can ascertain that the Avengers have separated and retired post Endgame. Yet Thor and Steve Rogers both have children to protect when a new threat — presumably Doctor Doom himself — emerges.

The X-Men

Based on the new teaser trailer, the X-Men are in dire straits. Magneto and Professor X play chess and find final moments of peace in a dilapidated X-Mansion. The school was potentially overrun or destroyed. But by Doom, Sentinels, or something/someone else? As always, we have to wonder if Scarlet Witch plays a key role. After all, in the comics, she erased mutants from existence and then got amnesia, marrying Doctor Doom in a state of total personality wipe. With the gradual introduction of the Young Avengers into the MCU, we have to hope Secret Wars eventually ties into Children’s Crusade…

Then there’s Cyclops. Overcome with grief, the X-Men team leader drops to his knees and releases a powerful optic blast. What could have caused this anguish? Questions abound. Theories are infinite. Answers … we guess we’ll just have to wait until December.

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Who is in Avengers: Doomsday?

According to IMDB, the Avengers: Doomsday cast consists of returning stars from all across the Marvel Cinematic Universe. Most notable are the familiar faces from the original X-Men franchise prior to the Disney acquisition. Here are your super heroes (and villains):

Villains

• Robert Downey Jr. as Doctor Doom
• Tom Hiddleston as Loki
• Ian McKellen as Magneto
• Tenoch Huerta as Namor

Fantastic Four

• Pedro Pascal as Reed Richards
• Vanessa Kirby as Sue Storm
• Joseph Quinn as Johnny Storm
• Ebon-Moss Bachrach as Ben Grimm/The Thing

Avengers and New Avengers

• Chris Evans as Steve Rogers
• Chris Hemsworth as Thor
• Anthony Mackie as Sam Wilson/Captain America
• Danny Ramirez as Joaquin Torres/Falcon
• Sebastian Stan as Bucky Barnes/Winter Soldier
• Florence Pugh as Yelena Belova
• Lewis Pullman as Bob Reynolds/Sentry
• John Walker as U.S. Agent
• David Harbour as Alexei Shostakov
• Letitia Wright as Black Panther
• Paul Rudd as Ant-Man

X-Men

• Rebecca Romijn as Mystique
• Patrick Stewart as Professor Charles Xavier
• James Marsden as Cyclops
• Alan Cumming as Nightcrawler
• Kelsey Grammer as Beast

Additional Allies

• Simu Liu as Shang-Chi
• Winston Duke as M’Baku

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When does Avengers: Doomsday release?

You’ll only have to wait about a year! Avengers: Doomsday releases exclusively in theaters on December 18, 2026. We also expect the movie to hit the Disney+ streaming platform a few months after the theatrical release, as is the general pattern with MCU drops.

In the meantime, we expect at least one more highlight trailer to hit the internet. Who do you hope might headline the next teaser?

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What did you think of the latest Avengers: Doomsday teaser trailer? Which version of the trailer do you hope to catch in theaters? Share your thoughts and theories with other Marvel fans at side.show/geekgroup or in the Sideshow Social Network. And don’t forget to Let Your Geek Sideshow!