Tom Holland's Peter Parker was introduced in Captain America: Civil War before starring in his very own movie, Spider-Man: Homecoming. We know Peter has a role to play in Infinity War, one that will see him suit up in a new version of his Spider-Man costume. And while the actor hasn't been spotted on the set of Avengers 4 yet, Marvel Studios president Kevin Feige did discuss how the events of both Avengers 3 and 4 will impact Peter Parker's life, essentially confirming the wall-crawler's presence. Feige also said that the Homecoming sequel, a movie already announced by Sony and Marvel, will begin mere minutes after the events of Avengers 4.
Introduced in Avengers: Age of Ultron, the Vision was positioned as one of the most powerful members of the Avengers, a crucial addition when the team is set to fight against powerful enemies from the other side of the universe. But with an Infinity Stone in his forehead, many took that to think that the Vision would inevitably fall at the hand of Thanos, as the villain proceeds to collect the stones to assemble his fabled Gauntlet. But in recent interviews, Paul Bettany has let slip that he still has another Avengers movie to make, and the actor is now expected to head to Atlanta for filming this September.
While Mark Ruffalo's Bruce Banner and his alter ego, the Hulk, have not been seen on set yet, the actor has gone on record to say that his character's storyline isn't complete by the end of Infinity War and that it will in fact continue to unfold in Avengers 4. Considering that it is unlikely we will ever see a solo Hulk movie again, this comes as a bit of good news. Just what exactly is in store for that storyline however remains a mystery, but it's a safe bet that it will start very soon, with the Hulk's important role in next November's Thor: Ragnarok.
Although Chris Evans originally had six movies to his Marvel contract, three Captain America movies and three Avengers movies, the actor agreed to extend it in order to appear in Avengers 4. Considering the impressive amount of characters that had to appear in the two movies, Evans' agreement to sign on for another Captain America appearance involved the promise that the movie would "wrap everything up." While this certainly makes us uncertain of Steve Rogers' long term future, solace can be found in the knowledge that his story will be last at least until Avengers 4.
Robert Downey, Jr.'s Tony Stark is the character that began it all, so it only makes sense that Iron Man would return for the MCU's ultimate cumulative movie. While some people are already discussing the possibility of Avengers 4 being Downey, Jr.'s last go in the Marvel franchise, we can at least take comfort in the fact that he will absolutely be in the movie. And not only that, it also seems that Stark won't be coming alone, as Gwyneth Paltrow's Pepper Potts and Jon Favreau's Happy Hogan have also been confirmed for the movie thanks to an Instagram post by Downey, Jr. himself.
As far as confirmed actors for the movie, this is as far as we can go for now. We don't yet know if War Machine, Black Panther, the Scarlet Witch, Doctor Strange, the Winter Solider, Mantis, Falcon, Captain Marvel, Loki and Thor will appear in Avengers 4 yet. But just because we haven't had confirmation so far, that doesn't mean that Don Cheadle, Chadwick Boseman, Elizabeth Olsen, Benedict Cumberbatch, Sebastian Stan, Pom Klementieff, Anthony Mackie, Brie Larson, Tom Hiddleston and Chris Hemsworth will not be a part of the movie. It just means that there is much we don't yet know.
However, when it comes to characters we officially know won't be in the movie, the list is incredibly short, with only one name: Samuel L. Jackson's Nick Fury.