After Spider-Man 4’s Recent Casting News, I’m Convinced Marvel Will Make Tom Holland’s MCU Dream A Reality In 2026

Spider-Man 4‘s recent casting announcement is not only very exciting, but it could allow Tom Holland’s big MCU dream to finally become a reality. The story of Spider-Man 4 is still mostly under wraps, but that has not stopped a big reveal from being made ahead of the film’s mid-2025 shooting date. This announcement came in the form of Sadie Sink’s Spider-Man 4 casting, with the Stranger Things star set to play opposite Tom Holland in the next installment of the Web-Slinger’s journey.

Naturally, this reveal sparked a great deal of speculation and theorization, primarily centered around which Marvel character Sadie Sink could be playing in Spider-Man 4. From theories that Mary Jane Watson would receive a more faithful adaptation with Sink in the role to other love interests like Gwen Stacy or popular mutants like Jean Gray and Firestar, Sadie Sink’s casting is undeniably the biggest talking point of the film thus far. However, a different theory entirely has cast Sadie Sink as another Marvel character, one who could fulfill a dream Tom Holland has long held for his MCU Spider-Man timeline.

A Spider-Man 4 Casting Theory Makes Sadie Sink The Daughter Of Tobey Maguire’s Peter Parker

Tying The Film To A Multiversal Plot


Sadie Sink looking shocked as Max in Stranger Things (2016-2025) next to Tobey Maguire looking concerned as Peter Parker in Spider-Man: No Way Home (2021)

The theory in question that has been circulating the internet since Sink’s casting in Spider-Man 4 is that she will be playing the daughter of Tobey Maguire’s Spider-Man, May “Mayday” Parker. The MCU’s Spider-Man 4 has long been rumored to be focused on the multiverse once more. Be it the reports that Sony wished to include Maguire and Andrew Garfield after the success of Spider-Man: No Way Home or the film’s placement in the MCU timeline between Avengers: Doomsday and Avengers: Secret Wars, Spider-Man 4‘s multiversal ties seem likely.

In Marvel Comics, Mayday Parker was the daughter of Peter Parker and Mary Jane Watson in an alternate universe. Mayday became Spider-Girl in that universe after Peter Parker suffered a back injury fighting the Green Goblin, with the latter element being teased in Spider-Man: No Way Home. Moreover, Maguire’s Spider-Man was still with Mary Jane in the 2021 MCU film and is the oldest of the three characters, meaning the two having a daughter in the form of Sadie Sink’s Mayday certainly makes sense.

If, indeed, Spider-Man 4‘s placement after Avengers: Doomsday‘s story means the film focuses on multiversal elements, Sink could be playing Mayday after all. This would allow the film to capitalize on the major success of Spider-Man: No Way Home by giving the other Spideys a role, all while providing a surprising subversion of the theories about who Sink is playing. More than that, Sink playing Mayday could mean that Tom Holland’s MCU dream is finally coming true.

Tom Holland Said He Hopes Miles Morales Or Spider-Woman Would Join The MCU

Holland Wants His Spider-Man To Become A Mentor

Tom Holland’s dream was first outlined by the actor during the press tour for 2022’s Uncharted. Holland was asked – by Esquire Middle East – to clarify earlier comments he made about not wanting to play Spider-Man past the age of 30. Holland stated that the initial quote was slightly misconstrued in that he meant he did not want to play Spider-Man past 30 without having pᴀssed on the baton to a younger version of the character first.

The first younger version of the character that Holland mentioned was Miles Morales. This has been the most prominent mentorship theory attributed to Holland’s Spider-Man, with many wishing for a dual-led film starring him and a new actor to play Miles Morales. Holland also mentioned Spider-Woman in his interview, stating that he would love to pᴀss the mantle on to either of these characters as he grows into his MCU role.

Sadie Sink Being Mayday Parker Could Make Tom Holland’s MCU Hopes A Reality In Spider-Man 4


Sadie Sink next to Tom Holland's Spider-Man from No Way Home
Custom image by Milica Djordjevic

With both the theory that Sink is playing Mayday Parker and Tom Holland’s MCU hopes in mind, Spider-Man 4 could fulfill both. If Sadie Sink is introduced as Mayday Parker due to Spider-Man 4‘s potential multiversal storyline, Holland’s Spider-Man could finally become a mentor as the actor wishes. Mayday Parker could need someone to teach her the ropes if ehs is just starting as Spider-Girl, with Holland’s character taking on the challenge.

This could be the MCU’s way of avoiding a potential clash with Sony Pictures. Sony is currently using Miles Morales as the focus of the studio’s Spider-Verse series, which has long been rumored to potentially transition into a live-action film. Via Sink’s casting, Marvel Studios could allow Holland’s dream to come true by giving him someone to mentor, all while subverting expectations, tying Spider-Man 4 to Tobey Maguire’s Peter Parker, and giving Sink a hero role she could play for years to come.

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