With the introduction of Robert Downey Jr.’s Doctor Doom as the central antagonist and the convergence of multiple universes, ‘Avengers: Doomsday’ represents a pivotal moment in the Marvel Cinematic Universe’s evolution. Stephen McFeely, who co-wrote all three Captain America movies, as well as ‘Avengers: Infinity War’ and ‘Avengers: Endgame’, alongside Christopher Markus, is the lead writer on ‘Avengers: Doomsday’, and Michael Waldron is now co-writing the film with McFeely. Chris McKenna and Erik Sommers wrote the scripts for ‘Avengers: Doomsday’ and ‘Secret Wars’. Does Marvel's writing team for Avengers: Doomsday increase your confidence in the movie? ‘Avengers: Doomsday’ is directed by Anthony and Joe Russo and will be released on December 18, 2026.