We are finally about to witness the first look at Avengers: Doomsday. After weeks of speculation, a trailer for the movie reportedly been quietly uploaded to YouTube likely in preparation for its official debut. While the video is currently unlisted and not yet viewable by the public.

Rumors have been circulating for some time about the impending teaser, with insiders claiming that Marvel and Disney want the trailer to drop ahead of the release of James Cameron’s Avatar: Fire and Ash.

Adding fuel to the excitement, a new leak began making the rounds on December 9. A screenshot from South Korea’s Media Rating Board an official regulatory body that reviews and approves trailers before they go online surfaced across social media. The listing shows that the Avengers: Doomsday teaser has been submitted and approved, with a runtime of 1 minute and 25 seconds.

Title:
Avengers: Doomsday

Distributor in Korea:
Walt Disney Company Korea Limited

Representative:
Kim So-yeon

Rating:
All ages — The trailer is approved for all audiences.

Classification Number:
2025-MP05962 — This is the official rating code.

Running Time:
1 minute 25 seconds — Confirms the teaser trailer length.

Supervision (Directors listed):
Joe Russo, Anthony Russo — Likely because they are credited for overarching franchise supervision or archival footage in the teaser.

Starring:
Robert Downey Jr., Pedro Pascal — These actors appear (visually or by narration) in the teaser.

Production Company:
Marvel Studios

Production Year:
2025 — Trailer produced in 2025.

With Avengers: Doomsday still more than a year away, fans are eager for even the smallest glimpse of what the next Avengers lineup will face. If the current signs are any indication, that first look may be dropping sooner rather than later.

The Cast For Avengers: Doomsday

Avengers / Main Heroes

Chris Hemsworth – Thor

Anthony Mackie – Captain America (Sam Wilson)

Sebastian Stan – Bucky Barnes / Winter Soldier

Paul Rudd – Ant-Man

Letitia Wright – Shuri / Black Panther

Simu Liu – Shang-Chi

Florence Pugh – Yelena Belova

Wyatt Russell – U.S. Agent

Danny Ramirez – Falcon (Joaquin Torres)

David Harbour – Red Guardian

Hannah John-Kamen – Ghost

Winston Duke – M’Baku

Fantastic Four

Pedro Pascal – Reed Richards / Mr. Fantastic

Vanessa Kirby – Sue Storm / Invisible Woman

Joseph Quinn – Johnny Storm / Human Torch

Ebon Moss-Bachrach – Ben Grimm / The Thing

X-Men

Patrick Stewart – Professor X

Ian McKellen – Magneto

Alan Cumming – Nightcrawler

Rebecca Romijn – Mystique

James Marsden – Cyclops

Kelsey Grammer – Beast

Channing Tatum – Gambit

Other Key Characters

Tenoch Huerta – Namor

Tom Hiddleston – Loki

Lewis Pullman – Sentry

Robert Downey Jr. – Doctor Doom

Avengers: Doomsday is scheduled to be released in the United States on December 18, 2026.