Doomsday, and four Star Trekactors will reprise their roles as Marvel characters. Directed by Joe and Anthony Russo, Avengers: Doomsday revealed 27 actors and characters led by Robert Downey Jr., who was previously announced to play the villainous Doctor Doom instead of his iconic role as Iron Man (Tony Stark).

Endgame." Many fans are wondering when is the next Marvel Cinematic Universe film and who's retuning to the Avengers? This week, Marvel unveiled the star-studded cast of "Avengers: Doomsday" during a livestream event with each actor being revealed one at a time with a glimpse at the back of their director's chair.

Men" films, including Patrick Stewart's Professor X and Ian McKellen's Magneto, were also confirmed as members of Disney's "Doomsday" cast. Fans can also expect appearances from stars of upcoming Marvel films,