Marvel Studios' third teaser for Avengers: Doomsday, released January 6, highlights X-Men characters Professor X, Magneto, and Cyclops as allies against Doctor Doom. Following teasers featuring Captain America and Thor, the footage depicts Cyclops unleashing optic blasts amid the growing conflict.
The January 6 teaser for Avengers: Doomsday builds on prior promotions by centering on X-Men integration into the MCU. Patrick Stewart reprises Professor X, Ian McKellen returns as Magneto, and James Marsden as Cyclops, shown unleashing his powers with the mutants allied in the battle.
Directed by Anthony and Joe Russo (Avengers: Infinity War, Endgame), the film stars Robert Downey Jr. as villain Victor von Doom. The cast includes Vanessa Kirby, Anthony Mackie, Sebastian Stan, Letitia Wright, Paul Rudd, Wyatt Russell, Tenoch Huerta Mejía, Ebon Moss-Bachrach, Simu Liu, Florence Pugh, Kelsey Grammer, Lewis Pullman, Danny Ramirez, Joseph Quinn, David Harbour, Winston Duke, Hannah John-Kamen, Tom Hiddleston, Alan Cumming, Rebecca Romijn, Channing Tatum, and Pedro Pascal.
Marvel released a first-look poster alongside the teaser. Avengers: Doomsday concludes the Multiverse Saga, arriving in theaters December 18, 2026.