From Jean Grey to Mary Jane Watson: 5 Possible characters that Sadie Sink could play in Spider-Man 4

Sadie Sink is set to make her Marvel Cinematic Universe debut, joining Tom Holland in Spider-Man 4. While her exact role remains undisclosed, reports confirm it will be a significant addition to the franchise. Deadline, which broke the news, stated that details about Sink’s character are being kept tightly under wraps, fueling speculation among fans about which iconic role she might take on.

Marvel Studios is known for its secrecy, often delivering unexpected surprises—much like the unforgettable Spider-Man: No Way Home moment when all three Spider-Men appeared on screen. With Sink’s talent and Marvel’s track record of jaw-dropping reveals, her addition to the MCU is already generating major excitement.

It's difficult to conclude as to who Sadie Sink might be playing in the film, with the MCU being home to hundreds of female characters. Nevertheless, here are our top picks on who Sadie Sink might be playing in Spider-Man 4.

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Who is Sadie Sink playing in Spider-Man 4

The most common bet is on the actress playing the role of Jean Grey, who is part of the X-Men. As Marvel continues to broaden the X-Men in the Marvel Cinematic Universe, most fans have pointed out that this could be the easiest choice for Sadie. In the past, this character has been played by Famke Janssen and Sophie Turner.

The second most common guess is that Sink might be playing the role of Mary Jane Watson. Mary Jane is Spider-Man's main love interest in the comics and later on gets married to her. In Tom Holland's franchise, Zendaya plays a character that's heavily inspired by Mary Jane Watson, with her name being Michelle-Jones Watson. The last we saw of Michelle was in Spider-Man: No Way Home where Peter Parker removed himself from the memory of Michelle.

If Marvel decides to bring back Gwen Stacy to the movies, then Sink might be a good choice for this as well. Although highly unlikely, seeing as Emma Stone's Gwen Stacy died in The Amazing Spider-Man, this wouldn't be the first time that a character is revived in Marvel.

Now if we delve deeper into the comic books, there are two more possible roles Sadie Sink might be joining the MCU for. First off we have Firestar.

Firestar was created for Spider-Man and his Amazing Friends and has been Peter Parker's companion, having fought alongside him against his enemies. As Marvel continues to expand the universe, Sadie Sink does seem to be a perfect casting choice to bring Firestar to life.

Another character fans are betting on is Black Cat. Also known as Felicia Hardy, she was a recurring character in the comics having fought against, and alongside Spider-Man.

In the comics, she is also a romantic interest for Spider-Man, which doesn't last very long given her disinterest in his original identity as Peter Parker. Regardless, she continues to be one of his trusted companions and is indulged in an unsteady relationship with him.

The speculations continue on who we'll get to see Sadie Sink as in the MCU.