Marvel fans are already theorizing how Patrick Stewart, Ian McKellen, and James Marsden's X-Men will be integrated into Avengers: Doomsday

Patrick Stewart in X-Men
(Image credit: 20th Century Fox)

Following Marvel’s huge Avengers: Doomsday cast announcement, which includes a group of Fox X-Men stars, fans are already wondering how the X-Men will fit into the MCU movie.

Marvel fans have been rallying around a Reddit thread to discuss the news and their theories, with many thinking that the X-Men being involved in an Avengers movie could only mean one thing: a call back to the 2012 Avengers vs. X-Men comic. "Is this gonna be X-Men vs Avengers? Cause the cast is way too big for them to make any sense of it any other way, right?" said one Reddit user.

One fan thinks that the X-Men will only appear in "a scene of their universe getting destroyed," showing the Avengers what villain Doctor Doom is capable of. "I mean it’s the only way a new era of x men can be born," continued the fan. "Realistically, Ian and Patrick are mid-80s. They can’t be pivotal characters anymore, as legendary as they are."

Although Doomsday will mark McKellen, Marsden, and Romijn's MCU debut. Stewart has already appeared in the Extended Cinematic Universe in Doctor Strange in the Multiverse of Madness, where we saw Professor X die. This means that the Charles Xavier in Doomsday won’t be the same one as before; perhaps he will be from the same universe as Deadpool 3’s Wolverine variant.

Junior Social Media Editor, GamesRadar+

I'm the Junior Social Media Editor here at GamesRadar+, handling all of Total Film's social platforms. However, I also write, covering all things film and TV for the site's entertainment section. I joined GamesRadar+ in 2023 and have been here ever since. I previously worked in communications after graduating with an MA in journalism. In my spare time, you can find me binging horror movies or getting lost in a cosy little game on my Switch.

You must confirm your public display name before commenting

Please logout and then login again, you will then be prompted to enter your display name.