Avengers: Doomsday centers on a multiverse collision involving heroes from three universes—the Avengers and related teams from Earth-616, the Fantastic Four from Earth-828, and Fox-era X-Men from Earth-10005—facing Robert Downey Jr.’s Doctor Doom. Official Marvel listings and recent promotions confirm a large ensemble including Chris Evans’ Steve Rogers, Chris Hemsworth’s Thor, Pedro Pascal’s Reed Richards, Channing Tatum’s Gambit, Ian McKellen’s Magneto, Patrick Stewart’s Professor X, and multiple Fantastic Four and Thunderbolts members. Fresh promos highlight Latveria and Doom’s tower while a global tour with Evans, Hemsworth, and Kevin Feige begins in early December, just weeks before the December 18 release. Traders watch for any last-minute additions or exclusions among rumored figures like Doctor Strange or Spider-Man, as the market resolves on on-screen appearances amid the film’s final marketing push.