Sadie Sink Rumored for Rachel Summers Role in Spider-Man 4
Marvel fans are buzzing after news broke that Sadie Sink, known for Stranger Things, may join the next Spider-Man film. With speculation swirling about her possible role, theories connect her to the X-Men universe in unexpected ways.
Marvel Studios sent shockwaves through the fandom when they revealed Sadie Sink, the breakout star from Stranger Things, would be joining the cast of the upcoming Spider- Man movie. Set to appear alongside Tom Holland in Spider-Man: Brand New Day, the announcement sparked a flurry of fan theories about which character she might portray. Some speculated she could be the daughter of Tobey Maguire’s Spider-Man and Mary Jane, while others imagined her as Jean Grey, the powerful mutant from the X-Men universe.
Speculation Grows Around Rachel Summers
Recently, rumors have gained traction that Sink is being considered for the role of Rachel Summers, the time-traveling daughter of Scott Summers and Jean Grey. According to one popular theory, Jean Grey (the Phoenix) and Scott Summers (Cyclops) send Rachel to a different timeline—the sacred one—to protect her from a looming threat. This idea fits with Marvel’s recent trend of introducing younger heroes, like Ms. Marvel and America Chavez, who have played key roles in the evolving cinematic universe. Even Thor now has a daughter, further fueling speculation about a new generation of superheroes.
Some fans believe that Dr. Doom, rumored to be the next major villain, is searching for children with extraordinary abilities. This could explain why Rachel is sent to Earth-616, possibly after Dr. Doom invades the X-Men’s timeline. The theory suggests that Rachel’s arrival could mark the first contact between mutants and the main Marvel universe.
Marvel’s Approach to Iconic Characters
Marvel has recently surprised audiences by reimagining classic characters, such as introducing a female Silver Surfer in The Fantastic Four: First Steps. In that film, the Silver Surfer is not Norrin Radd but Shalla-Bal, a character from the comics and the original Surfer’s love interest. This move has led some to wonder if casting Sink as Rachel Summers is another example of Marvel’s willingness to shake up established roles.
It ’s important to note that Rachel Summers is not simply a gender-swapped version of Cable. She is Cable’s sister, not his female counterpart, though both share time-traveling abilities. Josh Brolin portrayed Cable in Deadpool 2, but Cable is actually the son of Cyclops and Madelyne Pryor, Jean Grey’s clone, not Jean herself. Madelyne Pryor has already appeared in X-MEN ‘97, adding another layer to the complex Summers family tree.
Rachel Summers: Powers and Place in the Marvel Universe
Rachel Summers stands out as the daughter of Cyclops and Phoenix, and the half-sister of Nathan Summers, also known as Cable. The siblings have fought side by side in teams like X-Force. Rachel’s unique abilities combine telekinesis and the Phoenix Force, allowing her to travel through time and across dimensions. What truly sets her apart is that she has no alternate versions in the multiverse—she is the only one of her kind.
With the world having forgotten Peter Parker’s secret identity, it’s possible the X-Men could reach out to him, offering support now that he’s isolated. After all, Xavier’s School is known for welcoming gifted youngsters, and Rachel’s arrival could signal a new era for both mutants and Spider-Man’s world.
Avengers: Doomsday is set to premiere in theaters on December 18, 2026.