With Sadie Sink supposedly set to play Mary Jane Watson in Spider-Man 4, we're taking a look at how Avengers: Doomsday could set the stage for the character's unexpected Marvel Cinematic Universe

Tom Holland returns in another Spider-Man movie after a successful trilogy. Numerous actors join Spider-Man 4, including Sadie Sink, whose role has been a topic of discussion among fans.

Sadie Sink seems like a no brainer to join the shared universe, given her wild popularity related to Stranger Things (which is streaming with a Netflix subscription ). And with that show ending with its fifth and final season, her schedule could presumably be free to join the MCU.