Stranger Things star Sadie Sink will co-star with MCU vet Tom Holland in Spider-Man 4 in what’s only been described to this point as a large role. Previously rumored to be a front-runner for the role of Omega mutant and original X-Men Jean Grey, the identity of Sink‘s character has generated a lot of conversation online though it remains unknown. With that in mind, we’re jumping into the conversation, adding a few dark horse candidates for the young ginger star’s MCU alter ego.
Given that the new Spider-Man film will follow Avengers: Doomsday, there’s no telling just yet what the project’s setting might be, so ruling out any one particular character on the grounds of a “why would they be there?” argument is nonsensical at this point. In a collapsing Multiverse, all bets are off.
Firestar

Insider Jeff “The In” Sneider’s late 2024 report that Sink was leading a pack of actresses for the part of Marvel Studios’ Jean Grey seems to still be carrying a lot of weight in the current conversation about Sink’s Spidey 4 role. On one hand, we’ve heard on more than one occasion that the studio wants to introduce its own variants of the mutant heroes into the MCU before the X-Men film hits in (probably) 2027, so Grey makes a lot of sense for Sink; on the other hand, another red headed mutant has a much richer history with the Web-Slinger.
When rights issues blocked the use of Johnny Storm in 1981’s for NBC’s animated Spider-Man and His Amazing Friends, Firestar was created to be the fire to Bobby Drake’s ice. In 1985, the character was written into the mainstream Marvel Comics continuity where she has been an X-Man, New Warrior and Avenger. As much as folksight want to write the character off as a random Z-lister, remember a whole generation of kids–the generation that includes director Destin Daniel Cretton–grew up believing Firestar was pretty amazing. And, in some ways, it might be easier for a non-major member of the X-Men to be introduced as native to Earth-616 than for Jean Grey to suddenly appear.
Hope Summers

If one host of the Phoenix is possible, why not another? Raised in the future by Cable, Hope Summers, the Mutant Messiah, is as powerful of an Omega-Level mutant as has ever existed and one of the most important X-Men characters created this century.
Hope was never even close to fully utilized by Fox, only having briefly appeared in Deadpool 2 and Marvel could tap into her role as the mutant savior by throwing her into the mix as the Multiverse (likely) collapses and is then remade. Spidey has long been a mutant ally, so it wouldn’t be out of place for him to work with Hope to solve whatever is going on after the events of Avengers: Doomsday.
Rachel Summers

Of all the possibilities here, I actually like this one the best. Rachel Summers stands out among potential choices because of her identity as a Multiversal anomaly: across all timelines, there is only one Rachel Summers. Though not Omega-Level like her mother, Jean Grey, Rachel is a powerful telepath who has also demonstrated the ability to control time and travel to other realities.
While it may be a bit of a stretch, it’s important to remember that actions have consequences so when Monica Rambeau found herself stuck in whatever reality she ended up in during the third act of The Marvels, a response is due. With the Multiverse in jeopardy, it’s possible an older Rachel Summers, complete with her Hound skills intact, could be sent to explore things in Monica’s home universe where she meets up with Peter Parker.




















