New details emerge regarding who Stranger Things' Sadie Sink could potentially be playing in Marvel and Sony's Spider-Man 4.

Stranger Things star Sadie Sink is set to join the Destin Daniel Cretton-directed Spider-Man 4 alongside Tom Holland, according to multiple outlets.

Stranger Things alum Sadie Sink will be joining the film in a mystery role. Other than Tom Holland, who will be reprising his role as Peter Parker, Sink is the only confirmed cast member. Naturally, the Internet has been speculating about who Sink could be playing — is she a new take on Gwen Stacy,

Julia Carpenter has taken on some different personas in the Marvel Universe over the years. She stepped in as the second character to take on the mantle of Spider-Woman, making her a nice fit alongside Tom Holland’s Peter Parker, who will likely still be trying to figure out the ropes of Spider-Man without his friends.

Stranger Things actress Sadie Sink is set to appear in Spider Man 4, according to US reports. Hollywood publication Deadline said she had been cast in the sequel opposite returning star Tom Holland. There is no word yet on which character she might play,

Sink is swimming over to Marvel. Stranger Things star Sadie Sink is joining the next Spider-Man movie, which only adds more intrigue to the latest chatter churning out of the rumor mill. Sink will costar with Tom Holland in the yet-untitled Spider-Man 4,

Sadie Sink has joined the Marvel canon! The Stranger Things and O’Dessa star is set to join the fourth Tom Holland Spider-Man film. As of this time, we do not know who she is playing in the film and there are plenty of female characters in Peter Parker’s life she could be playing.

By now, you've heard the news that Stranger Things star Sadie Sink has joined the cast of Spider-Man 4 alongside Tom Holland. But while fans mull over which fictional red head the 22-year-old actor is going to play—the most popular theory is probably X-Men's Jean Grey—they'll still have to wait for Spidey to stop filming Christopher Nolan's adaptation of The Odyssey before production of the Marvel x Sony project can even begin.