The trailer for Avengers Doomsday was recently shown at CinemaCon in Las Vegas, giving audiences a first look at the next big film in the Marvel Cinematic Universe. The film is set to release in December and brings back Robert Downey Jr and Chris Evans in surprising roles.
Robert Downey Jr returns to the MCU but not as Iron Man. This time, he plays the villain Doctor Doom. The trailer opens with a voice saying, “Something’s coming!” before showing a flash of light and then revealing him in a silver mask as Doctor Doom. This marks a major shift for the actor, who was earlier known for playing a hero in the franchise.
The trailer also features several well known characters. These include Pedro Pascal as Mister Fantastic, Sebastian Stan as Bucky, Florence Pugh as Yelena, Chris Hemsworth as Thor, Letitia Wright as Shuri, Channing Tatum as Gambit, Patrick Stewart as Professor X, James Marsden as Cyclops, Vanessa Kirby as Sue Storm, Joseph Quinn as Johnny Storm, and Tenoch Huerta as Namor.
One of the key moments in the trailer shows Thor leading the fight. He says, “They died facing enemies and threats. Everything they sacrificed will be for nothing if we don’t stand together.” When Thor attacks Doctor Doom, the villain easily stops him. Thor then hopes for a miracle, and a voice says, “Hey, pal!” It is Steve Rogers. Thor looks surprised as Rogers lifts his hammer Mjölnir.
Robert Downey Jr. enters #CinemaCon to huge applause ahead of the "Avengers: Doomsday" trailer world premiere, which finally unveils his Doctor Doom in the Marvel Cinematic Universe. https://t.co/1tHtZEh7sF pic.twitter.com/MNuIH1oYtp
— Variety (@Variety) April 16, 2026
The trailer has not yet been released to the public, but it received a strong reaction at CinemaCon, with the audience cheering and asking for it to be played again. Speaking at the event, Robert Downey Jr said, “Honestly, I could not have imagined reuniting with this amazing team, after such a glorious run of success and creative joy, let alone as a new character,”
The first full trailer for 'AVENGERS: DOOMSDAY' has been released by Marvel at #CinemaCon.
— DiscussingFish (@DiscussingFish) April 16, 2026
In Theaters on December 18. pic.twitter.com/FYEmtaXC5k
Chris Evans also spoke about his return. He said, “I said I would only come back if there was a real reason, and in ‘Doomsday,’ there is a very real reason that these heroes need Steve Rogers now,”
Avengers Doomsday will release on December 18 and will clash at the box office with Dune 3.