All X-Men confirmed to be in the MCU
As of this writing, Professor X, Ms. Marvel, Namor, and Beast are the confirmed X-Men members of the MCU.
However, Ms. Marvel and Namor exist within the MCU’s main continuity, while Professor X and Beast exist within the MCU’s multiverse.
Professor X is the first member of the X-Men who was introduced to the MCU via Doctor Strange in the Multiverse of Madness, where he served as a member of the Illuminati who met his demise at the hands of an alternate Wanda Maximoff, who was brainwashed by the main continuity Wanda aka Scarlet Witch.
Then Ms. Marvel and Namor were introduced in 2022’s Ms. Marvel and Black Panther: Wakanda Forever, respectively. Finally, the mid-credits scene of The Marvels introduced an alternate version of Dr. Hank McCoy, aka Beast.
Deadpool, Wolverine, Yukio, Negasonic Teenage Warhead, and Colossus are the next slew of confirmed X-Men members, who will be introduced to the MCU via July 2024’s Deadpool 3, which will deal with the concept of the multiverse. Interestingly, however, a version of Wolverine does seem to exist in the prime MCU timeline thanks to an easter egg in She-Hulk: Attorney at Law, which saw Jennifer Walters’ superhero read an article about a man with claws getting into a bar brawl.
X-Men rumored to be coming to the MCU
Cyclops, Jean Grey, and Storm are the X-Men rumored to be coming to the MCU via Deadpool 3.
According to noted insider CanWeGetSomeToast, Deadpool 3 will reportedly not only feature Hugh Jackman’s Wolverine but also James Marsden’s Cyclops, Famke Janssen’s Jean Grey, and Halle Berry’s Storm. However, it is unknown if they will have major roles like Wolverine or be cameos.
For more MCU content, here is what Tom Hiddleston said about the Loki Season 2 finale. Also, here is the filming restart date window for Deadpool 3.