Sadie Sink Swings Into the MCU: Mystery Role Teased in ‘Spider-Man: Brand New Day

Sadie Sink is expected to make her Marvel Cinematic Universe debut in Spider-Man: Brand New Day, stirring excitement among fans as Phase 6 prepares to launch this summer.

The movie is anticipated to bring Tom Holland’s Peter Parker back to the MCU after his last appearance in Spider-Man: No Way Home (2021). While Sink’s character remains officially under wraps, speculation and fan art have offered intriguing possibilities.

Fan Artwork Sparks Mayday Parker Theory

Although Marvel Studios and Sony Pictures have not confirmed Sadie Sink’s role, artist Mohd Haris recently shared unofficial artwork imagining Sink as Mayday Parker.

In the image, she is portrayed as the daughter of Peter Parker and Mary Jane Watson from the Sam Raimi-directed Spider-Man universe.

This multiverse-based concept gained traction as Mayday Parker previously appeared only briefly as a baby in Spider-Man: Across the Spider-Verse (2023).

With Spider-Man: Brand New Day scheduled to begin principal photography this summer, speculation continues to swirl around Sink’s role. Liza Colón-Zayas has also joined the cast in an undisclosed part.

Since Sink was announced as part of the film, various fan theories have surfaced, imagining her as multiple Marvel characters.

However, the idea of her as Mayday Parker appears to be the most popular, especially if the film explores multiverse themes.

Multiverse Angle May Connect to Raimi’s Spider-Man Legacy

If Sadie Sink is indeed playing Mayday Parker, the story could expand the legacy of Tobey Maguire’s Spider-Man and Kirsten Dunst’s Mary Jane Watson. Introducing their daughter would be a logical step in fleshing out their world.

Should Mayday be stranded in Earth-616 during Phase 6, this could lead to the return of Maguire’s Spider-Man, potentially teaming up with Holland’s Peter Parker.

While there is no official confirmation, the visual of Sink as Spider-Girl has resonated with fans. Her portrayal could offer a fresh dynamic to the franchise by pairing Holland’s Peter with another Spider-hero.

A collaboration between Sink’s Mayday and Maguire’s Peter could also deepen the film’s emotional and narrative layers.

Fans React to Casting Rumors and Artwork

Since March, when Sink’s casting was announced, fan excitement has grown steadily despite the absence of character details. Numerous theories about her role have emerged.

Some fans speculated she might portray Jean Grey, Firestar, or even Mary Jane Watson. Another widely circulated theory suggested she might take on the role of Lily Hollister, known in the comics as the villain Menace.

Each theory gained attention online, but the possibility of Sink playing Mayday Parker received a major boost after insider John Rocha shared new details on The Hot Mic podcast.

Rocha stated, “My source heard Sadie Sink is playing Mayday Parker. So, connecting to the Tobey universe. She’s his daughter.”

Timeline Ties to Tobey Maguire’s Spider-Man

According to the fresh insights, Sink’s character is likely connected more closely to Tobey Maguire’s Spider-Man than Tom Holland’s.

Her storyline is expected to operate within a different timeline, further supporting the theory of a multiverse-centric plot. This angle could bridge different Spider-Man universes, enriching the MCU’s broader narrative.

If confirmed, Sadie Sink’s portrayal of Mayday Parker would mark a significant character debut in the MCU. As Spider-Man: Brand New Day nears production, more concrete information about her role is likely to emerge.

Fans continue to speculate, but the idea of Sink stepping into the shoes of Spider-Girl remains one of the most exciting prospects for the upcoming film.

Awaiting Confirmation

Despite ongoing rumors and fan enthusiasm, Sadie Sink’s role in Spider-Man: Brand New Day remains officially unannounced. With filming expected to commence soon, it’s only a matter of time before more details surface.

Until then, the possibility of her playing Mayday Parker, daughter of Peter Parker and Mary Jane Watson, remains a compelling theory in the MCU fan community.