X-Men Will Return in Avengers: Doomsday — Legends Teased in New Footage

The mutants are coming back. A new teaser for Avengers: Doomsday confirms the return of the X-Men, featuring Patrick Stewart, Ian McKellen, and James Marsden stepping back into their iconic roles. The moment signals a major crossover as Earth’s heroes prepare for their biggest battle yet — one that finally brings the X-Men into the fight. Avengers: Doomsday hits theaters December 18, 2026.