While the first trailer for Avengers: Doomsday showcases a massive crossover event, several notable MCU veterans are conspicuously absent from the confirmed cast list. Despite expectations for an epic team-up, major heroes including Spider-Man, Captain Marvel, and the core Guardians of the Galaxy are currently MIA.
Key absences also extend to the X-Men, Eternals, and the Young Avengers, leaving fans to wonder who will actually join the fight against Doctor Doom. With the film hitting theaters on December 18, 2026, many are speculating whether these characters are being held back for a surprise reveal or being saved for Secret Wars.