Already Excited For Avengers: Doomsday? Everything We Know About The Marvel Epic

Robert Downey Jr is returning to the Marvel Cinematic Universe in what promises to be one of 2026's biggest movie releases.

Seven years after Avengers: Endgame broke box office records – and the hearts of fans around the world – Marvel has put together yet another epic big-screen crossover event.

Avengers: Doomsday marks the fifth instalment in the Avengers franchise, and is expected to be the cinema event of 2026, bringing back some of our favourite characters and introducing a whole new roster of superheroes to the MCU.

With months to go until the release, fans already have plenty of questions about the upcoming release. Namely, who is in the star-studded cast? What exactly is the plot of Avengers: Doomsday? And how did one actor’s abrupt departure lead to the entire film being rethought?

Here’s everything we can tell you about Avengers: Doomsday so far…

What is Avengers: Doomsday about?

Marvel has already teased that Avengers: Doomsday will mark the beginning of the end for its multiverse saga, which began in 2021 with the TV series WandaVision.

Although there is official plot details are still being kept under wraps, the studio has said that the Phase Six movie sees “beloved heroes from three distinct universes” embarking on “a deadly collision course” and facing “an existential threat unlike anything they’ve ever encountered”.

In other words, we should expect to see characters from The Avengers, Thunderbolts, X-Men and Fantastic Four all teaming up to defeat the evil Doctor Doom.

Fans are already theorising that this will create “Battleworld”, a patchwork planet from the Marvel comics, which is created from fragments of destroyed realities.

“We’re not talking too much about story, but I think people know that the story of Doomsday is inspired by a very famous comic run in which universes are colliding and Earths encounter one another and different timelines encounter one another,” Marvel Studios chief Kevin Feige teased to Entertainment Weekly in April this year.

Who is in the cast of Avengers: Doomsday, and which Marvel stars are returning?

Frankly, it might be quicker to list who from the MCU isn’t set to appear in Avengers: Doomsday.

In March last year, Marvel hosted a mammoth five-hour livestream where they slowly revealed the sprawling cast of Avengers: Doomsday, which includes some of the biggest names in Hollywood – and pretty much anyone who has ever appeared in a Marvel film.

Chris Hemsworth, Anthony Mackie, Paul Rudd, Tom Hiddleston and Sebastian Stan are just some of the former Avengers stars announced to be returning in the livestream, reprising their roles as Thor, Captain America, Ant-Man, Loki and Winter Soldier, respectively.

Meanwhile, Florence Pugh, David Harbour, Lewis Pullman and Wyatt Russell will be representing Thunderbolts*, while The Fantastic Four’s Pedro Pascal, Vanessa Kirby, Joseph Quinn and Ebon Moss-Bachrach will also be making their Avengers debut in Doomsday.

The biggest shock of them all came........

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