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Wednesday, August 19, 2026

The MCU’s New Cast Update All But Dooms 7 Avengers: Doomsday Heroes

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Zoë Miskelly is an editor and second in command for Screen Rant's Movies team, having covered the entertainment industry for almost 10 years now. Zoë's love of superheroes and all things Marvel & DC started out in childhood, and has blossomed into a career getting to talk about some of the biggest and best movies and shows of all time, having previously focused on comics while working at WhatCulture.

The MCU's newest cast update has made the fate of seven of Avengers: Doomsday's heroes seem more fraught and potentially bleak than ever for this chapter of the franchise. Over the history of the MCU timeline, the Avengers movie series has had one of the highest death tolls for the franchise's heroes.

Of course, Avengers: Infinity War and Avengers: Endgame are the most famous examples of this, since Iron Man and Black Widow's dramatic sacrifices and the temporary demises of everyone who was blipped were emotional moments to say the least. However, Avengers: Age of Ultron claimed the first Avenger of sorts, as Quicksilver died just after he and Scarlet Witch joined the heroes' forces.

Given this backdrop, Avengers: Doomsday and Avengers: Secret Wars are teed up to claim the lives of at least some of the story's central heroes, both to craft a climactic conclusion to the Multiverse Saga where the stakes are suitably high, and to ensure Doctor Doom seems as imposing as Thanos. After the latest cast updates for the MCU, one group of heroes seems all the more likely to be the first candidates for this fate in order to ensure the road forward for the franchise is as smooth as possible.

The MCU's X-Men Cast Announcement Means It's Even Harder To See Avengers: Doomsday's X-Men Variants Surviving It & Avengers: Secret Wars

Patrick Stewart as Professor X in Avengers: Doomsday Via MovieStillsDB

D23 brought with it a range of exciting updates about a range of franchises, including the news about the new MCU X-Men actors who are attached to the series' upcoming X-Men movie, building on from Spider-Man: Brand New Day's reveal of Sadie Sink playing Jean Grey.

The announcement confirmed that Sadie Sink will be continuing in her role as Jean Grey, alongside Kit Connor as Cyclops, Samara Weaving as Emma Frost, Maya Boyd as Storm, Inde Navarrette as Rogue, Christopher Abbott as Charles Xavier, and Adam Driver as X-Men antagonist Mister Sinister.

This is an exciting roster, but one that's doubly interesting as we have some key X-Men characters in this lineup who we're set to see in Avengers: Doomsday played by their prior Fox X-Men movie series actors beforehand, since the multiversal versions of figures like Cyclops and Professor X have been shown to be a part of the upcoming story.

Given the new X-Men castings are now confirmed and on the near horizon, the MCU seems to be in a position wherein it needs to tie up the stories of these other iterations of the mutant heroes, making it look all the more likely that they'll be first on the proverbial chopping block when it comes to killing protagonists off, especially since this would work to show how big of a threat Doctor Doom really is.

Avengers: Secret Wars' Comic Source Material Makes The Fate Of Doomsday's X-Men Seem Inevitable

Doctor Doom Commanding Sentinels In Avengers Doomsday D23 Trailer

With both the classic and newer 2010s version of the Secret Wars comics featuring their fair share of heroes losing fights and not infrequently facing brutal deaths, the position the X-Men movie casting puts the classic film versions of the characters in does seem to be one that leaves them in a fraught position.

Indeed, the 2015-2016 Secret Wars comic is notably led into via Time Runs Out, a storyline that kills off a huge number of alternate universe heroes as worlds collide, meaning it's possible the Fox X-Men could die before Avengers: Secret Wars itself depending on what road Avengers: Doomsday takes with the source material and its approach to the MCU's universe-shattering Incursions.

Even the nicest possible endings for the Fox X-Men do seem to be complex fates in their own way, as the teased MCU reboot following Avengers: Secret Wars could well see these characters effectively revived or reincarnated into their upcoming roles and forms, though this would contrast with Sadie Sink's Jean Grey already existing, and would still constitute a death of sorts for the prior versions of the heroes.

With that said, the truth of this scenario will only become clear when Avengers: Doomsday and Avengers: Secret Wars have finally debuted, and the popularity of Deadpool & Wolverine means it seems likely that at least some of Marvel's prior versions of beloved mutant heroes will survive - though the odds are certainly stacked against every X-Men that's set to appear in Avengers: Doomsday for an increasingly growing assortment of reasons.

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