Marvel Studios released the fourth teaser trailer for Avengers: Doomsday on January 13, 2026, highlighting Wakanda's heroes and the Fantastic Four. The trailer accompanies a new YouTube livestream countdown to the film's December 18 release. Directors Joe and Anthony Russo described the teasers as stories and clues for fans.
Marvel kicked off a monthlong promotional campaign for Avengers: Doomsday with a series of teaser trailers, each focusing on different characters or groups. The first showcased Chris Evans returning as Steve Rogers, now with a baby. The second featured Chris Hemsworth's Thor alongside his daughter. The third highlighted returning X-Men actors Patrick Stewart, Ian McKellen, and James Marsden.
The latest, fourth teaser, premiered in theaters before screenings of Avatar: Fire and Ash and was released online on January 13. It centers on Wakanda, with Letitia Wright reprising her role as Shuri, who narrates: “I’ve lost everyone that matters to me. A king has his duties, to prepare our people for the afterlife. I have mine.” The trailer includes Winston Duke as King M’Baku, confirming his ascension to the throne after challenging Shuri at the end of Black Panther: Wakanda Forever.
A key moment introduces Ebon Moss-Bachrach as Ben Grimm, the Thing from the Fantastic Four, meeting M’Baku. “King M’Baku of Wakanda,” M’Baku says. “Ben. Yancy Street between Broome and Grand,” Thing replies, adding a humorous touch to the somber tone.
Namor (Tenoch Huerta), the underwater ruler from Wakanda Forever, appears in a black, comic-accurate suit alongside his cousin Namora (Mabel Cadena). After serving as antagonists in the previous film, they may ally with Wakanda against Robert Downey Jr.'s Doctor Doom.
To build anticipation, Marvel launched a YouTube livestream titled “DOOMSDAY CLOCK” after the trailer's release. It plays the teaser before starting a countdown to December 18, 2026, under the warning “DOOMSDAY IS COMING.” The stream had run for over two hours by early afternoon, with fans speculating if it would continue until the premiere.
Directors Joe and Anthony Russo posted on Instagram: “What you've been watching for the last four weeks ... are not teasers. Or trailers. They are stories. They are clues … Pay attention. #DoomsdayHasBegun.”
Avengers: Doomsday marks Marvel's biggest ensemble since 2019's Endgame, uniting heroes from Thunderbolts, The Fantastic Four: First Steps, and more, including Evans, Hemsworth, Anthony Mackie, and an X-Men crossover. It precedes Avengers: Secret Wars in December 2027. No full plot has been revealed, but a teaser in First Steps suggested Doctor Doom kidnaps Franklin Richards, son of Sue Storm (Vanessa Kirby) and Reed Richards (Pedro Pascal).
