Unofficial fan guide · Multiverse Saga

Avengers:
Doomsday

Everything we actually know about Marvel Studios' multiversal event - the confirmed cast across three universes, every trailer, release details, and fan theories kept clearly separate from fact.

In theaters: Dec 18, 2026Directors: Anthony & Joe RussoWriters: Michael Waldron & Stephen McFeely

Read the full guide Watch the trailers

Cinema marquee lights at a film premiere

Countdown to release

148

Days

07

Hrs

06

Min

30

Sec

At a glance

The essentials

Release date

Dec 18, 2026United States

Directors

The RussosAnthony & Joe Russo

Villain

Doctor DoomRobert Downey Jr.

Confirmed cast

30 actorsacross three universes

Studio

Marvel Studiosdistributed by Disney

Sequel

Secret WarsDec 17, 2027

Explore the guide

The Movie

The complete, fact-checked overview of everything confirmed.

Cast & Characters

All 30 confirmed actors, sorted by team and universe.

Doctor Doom

Downey's villain, and why this casting is such a swing.

Trailers

Every teaser and the full trailer, in order, with context.

Production Timeline

From the Comic-Con reveal to release day, step by step.

Release Information

Dates, formats, IMAX, and the "Infinity Vision" rollout.

Vintage comic-book artwork — The threat: a new Doctor Doom anchors the film.

The villain

Robert Downey Jr. is Doctor Doom

In a move revealed at San Diego Comic-Con, Robert Downey Jr. returns to the MCU - not as Tony Stark, but as Victor von Doom. It is the central hook of the whole film. Confirmed by Marvel Studios.

Meet Doctor Doom

The ensemble

Heroes from three universes

The Avengers, the Fantastic Four, and the X-Men collide. Here's a first look - see the full, sortable roster on the cast page.

Villain

Robert Downey Jr. as Doctor Doom

Doctor Doom

Robert Downey Jr.

Victor von Doom - a new role, not a Tony Stark return

Avengers

Chris Evans as Steve Rogers

Steve Rogers

Chris Evans

The original Captain America

Avengers

Anthony Mackie as Sam Wilson

Sam Wilson

Anthony Mackie

The current Captain America

Avengers

Chris Hemsworth as Thor

Thor

Chris Hemsworth

God of Thunder

Avengers

Paul Rudd as Scott Lang

Scott Lang

Paul Rudd

Ant-Man

Avengers

Florence Pugh as Yelena Belova

Yelena Belova

Florence Pugh

Black Widow / New Avengers

See all 30 cast members

The road to release

Where things stand

Summer 2025

On location

Location filming takes place in Bahrain and at Windsor Great Park, alongside the Pinewood soundstages.

September 19, 2025

Filming wraps

Principal photography completes after roughly five months, moving the film into post-production.

Dec 2025 – Jan 2026

Four teasers · 1 billion+ views

Four teasers roll out with screenings of Avatar: Fire and Ash, each spotlighting a group. Together they pass one billion views within three days.

April 2026

CinemaCon footage

A full trailer plays for exhibitors at CinemaCon - the first substantial footage shown to a live audience, and the first look at Doom.

July 20, 2026

Full trailer online

The full trailer arrives online, revealing Downey's Doctor Doom and hitting 503 million views in 24 hours. Premium “Infinity Vision” tickets go on sale the same day.

December 18, 2026

In theaters

Avengers: Doomsday opens in 4,000+ U.S. theaters and select international premium formats.

December 17, 2027

Avengers: Secret Wars

The saga concludes one year later with the confirmed sequel, from the same writers and directors.

See the full timeline