Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

Avengers, reassemble! In what can only be described as a cinematic event of epic proportions, Marvel Studios unveiled the star-studded cast of Avengers: Doomsday during a five-hour livestream on Wednesday. One by one, each actor was revealed with a stylish shot of the back of their director’s chair, keeping fans glued to their screens in eager anticipation.

The livestream concluded with none other than Robert Downey Jr., who stunned fans by walking out and claiming his chair—this time not as Iron Man, but as the villainous Doctor Doom. The twist is a bold move by Marvel, signaling an ambitious direction for the MCU’s next phase.

Set to hit theaters on May 1, 2026, Avengers: Doomsday is shaping up to be an unprecedented crossover, blending the worlds of the Avengers, X-Men, Fantastic Four, and Thunderbolts into a single cinematic showdown.



X-Men Return in Full Force

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

Original X-Men stars Patrick Stewart and Ian McKellen return as Charles Xavier and Magneto, respectively—marking McKellen’s first appearance as Magneto since 2014’s Days of Future Past. They’ll be joined by Alan Cumming (Nightcrawler), Rebecca Romijn (Mystique), James Marsden (Cyclops), and Kelsey Grammer (Beast), who had a surprise cameo in 2023’s The Marvels.

Channing Tatum is also making waves with his official return as Gambit, following a memorable appearance in Deadpool & Wolverine. After years of development hell for a solo Gambit movie, Tatum’s comeback adds a fan-favorite flavor to the mix.

Fantastic Four Joins the Fight

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

All four leads from The Fantastic Four: First Steps are confirmed to appear in Doomsday: Vanessa Kirby (Sue Storm), Pedro Pascal (Reed Richards), Joseph Quinn (Johnny Storm), and Ebon Moss-Bachrach (Ben Grimm). Their crossover into the Avengers storyline signals Marvel’s intent to fully unify its multiverse.

Thunderbolts and Avengers Old & New

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

The film will also include characters from Thunderbolts, such as David Harbour (Alexei Shostakov), Florence Pugh (Yelena Belova), Hannah John-Kamen (Ghost), Wyatt Russell (John Walker), Lewis Pullman (Bob), and Danny Ramirez (Joaquin Torres). From the Avengers side, familiar faces like Simu Liu (Shang-Chi), Anthony Mackie (Sam Wilson), Sebastian Stan (Bucky Barnes), Letitia Wright (Shuri), and Paul Rudd (Scott Lang) are all in.

Chris Hemsworth and Tom Hiddleston reunite as Thor and Loki, respectively, for the first time since Avengers: Endgame. Loki, last seen in his Disney+ series, has yet to reunite with Thor on-screen—until now.

Surprise Absences and Mystery Roles

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

Notably absent from the cast list were Chris Evans, Hugh Jackman, and Ryan Reynolds, despite rumors of their involvement. Given Marvel’s history of secret cameos, fans are still hopeful these legends might appear.

Directorial Dream Team Returns

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup

Directing duo Anthony and Joe Russo are back at the helm for Doomsday and its follow-up, Avengers: Secret Wars, set for release on May 7, 2027. In an interview with Omelete, Joe Russo explained that while Endgame was an ending, these new films will serve as “a beginning.”

“We told an ending story, now we’re going to tell a beginning story,” Joe Russo said.

Full Revealed Cast of Avengers: Doomsday:

Marvel’s Massive Avengers: Doomsday Cast Unveiled — Vanessa Kirby, David Harbour, Downey Jr. Lead the Lineup
  • Chris Hemsworth
  • 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
  • Patrick Stewart
  • Ian McKellen
  • Alan Cumming
  • Rebecca Romijn
  • James Marsden
  • Channing Tatum
  • Pedro Pascal
  • Robert Downey Jr.

With Avengers: Doomsday, Marvel is not just raising the stakes—it’s rebuilding the universe. Fans now wait with bated breath for May 2026, when heroes, anti-heroes, and villains collide in what might be the MCU’s most ambitious chapter yet.


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