Sadie Sink's surprising Spider-Man: No Way Home's ending, it's likely that Holland's Peter Parker will be ed by new friends in Spider-Man 4.
Spider-Man 4's plot details remain under wraps, and the biggest questions surrounding Spider-Man's next solo movie involve the film's tone, Peter Parker's ing cast, and the potential allies Spider-Man might team up with. Candidates for Spider-Man's teammate include Daredevil, Ant-Man, Shang-Chi, and any mutant already present in the MCU multiverse, like Deadpool or Wolverine. However, Marvel Studios could make a bold move in Spider-Man 4 and introduce a new MCU hero who could make their debut at the end of the Multiverse Saga at the same time that Peter Parker restarts his life from scratch.
Sadie Sink Has Been Cast In Spider-Man And Speculation Points To Her Playing Jean Grey
Sadie Sink Is The First Big Name To The MCU For Spider-Man 4
On March 12, 2025, Deadline reports that Sadie Sink has ed Spider-Man 4's cast. Before Sink's official casting was reported, it was heavily speculated that she would be playing a major MCU character soon, with the most popular theories revolving around the X-Men member Jean Grey. While these used to be fan theories, Sadie Sink's Spider-Man 4 casting suggests that they may have had a solid basis all along. Sadie Sink played Max Mayfield in Stranger Things, who bears some similarities to Marvel's Jean Grey a.k.a. Phoenix.
If Sadie Sink Plays The MCU's Jean Grey, It Fulfills My Ultimate Dream Casting
Stranger Things Proved Sadie Sink Would Be An Amazing Jean Grey In The MCU
In Stranger Things, Sadie Sink's Max death opens the last curse gate that allows the dark entity Vecna to expand his reach outside the Upside Down realm. However, Eleven brings Max back to life, even though it seemed impossible for Max to survive the ordeal. Max Mayfield's sacrifice in Stranger Things is quite similar to Jean Grey's Phoenix Force dynamics. In Marvel Comics and Fox's X-Men movies, Jean Grey is destined to sacrifice herself to both unleash the Phoenix Force upon the world and stop it, always coming back to life one way or another.
The MCU's Latest X-Men Report Makes My Hopes About The Marvel Team's Introduction 1 Step Closer To Becoming Reality
Marvel's first X-Men project reports are promising for the MCU's mutantkind, especially considering how a mutant show would fit into the franchise.
Sadie Sink's Stranger Things role has made her a coveted actor, and at twenty-two years old, she's young enough to enter a movie franchise as expansive as the MCU as a recurring character and still have plenty of time to move on to other projects afterward. At around twenty-five years old, Sadie Sink's Jean Grey could become one of the main stars of the MCU's Mutant Saga after Phase 6 ends. Other big-name actors around Sadie Sink's age could her for the MCU's first X-Men movie and other mutant-related projects.
