Robert Downey Jr. returns to the MCU with other confirmed actors including stars Chris Hemsworth and Tom Hiddleston, 'X-Men' stars like Patrick Stewart and Ian McKellen, and a good chunk from the studio's 'Thunderbolts.

A mysterious livestream is revealing cast members one at a time — so far including Chris Hemsworth, Vanessa Kirby, and Anthony Mackie. They’ll appear in Avengers: Doomsday, set to hit theaters on May 1st 2026,

Avengers: Doomsday is expected to deal with characters across parallel universes, meaning actors can play various roles. Though Chris Evans exited the franchise as Steve Rogers, the original Captain America, in Avengers: Endgame, there have been reports he’ll return as another character in the 2026 movie.