Avengers: Doomsday — your quick guide to the cast, plot and release date

The headline-grabber is the big swing at the center of it: Robert Downey Jr. is back in the MCU, this time slipping into the armor of Doctor Doom. He won’t be the only familiar face. Chris Evans returns as Steve Rogers, and the lineup pulls in heroes and mutants from across Marvel history as the studio sets up its next mega-showdown in Avengers: Doomsday.

• Robert Downey Jr. — Victor Von Doom
• Chris Evans — Steve Rogers
• Chris Hemsworth — Thor
• Pedro Pascal — Reed Richards/Mister Fantastic
• Paul Rudd — Scott Lang/Ant-Man
• Anthony Mackie — Captain America/Sam Wilson
• Florence Pugh — Yelena Belova
• Vanessa Kirby — Sue Storm/Invisible Woman
• Ebon Moss-Bachrach — Ben Grimm/The Thing
• Wyatt Russell — John Walker
• Channing Tatum — Gambit
• Simu Liu — Shang-Chi
• Ian McKellen — Magneto
• Hayley Atwell — Peggy Carter
• Tom Hiddleston — Loki
• James Marsden — Cyclops
• Patrick Stewart — Professor Charles Xavier
• Joseph Quinn — Johnny Storm/Human Torch
• Sebastian Stan — Bucky Barnes

Three worlds collide

Marvel is keeping plot specifics under wraps, but the studio’s synopsis points to a “collision” that unites heroes from three different corners of its universe — the main MCU timeline, the X‑Men world, and the Fantastic Four . That’s how you get Magneto, Professor X, and Cyclops sharing the field with Captain America and Thor, while the Richards–Storm –Grimm crew enters the fray against Doom.

And there are still surprises being held back. Asked directly about a possible Hulk appearance, directors Joe and Anthony Russo wouldn’t bite, but they did confirm there are more names we haven’t heard yet.

“The farthest we can go is to say, there are characters and actors who have not been announced, who are a part of Doomsday,” Anthony Russo said.

Release date

Directed by Joe and Anthony Russo, Avengers: Doomsday is slated to open in theaters on December 18, 2026 .