Streaming & TV Alerts · Jamie Sutton · 26 July 2026

Avengers: Doomsday trailer rocks Comic-Con with Doom

Avengers: Doomsday trailer rocks Comic-Con with Doom

Marvel Studios chief Kevin Feige surprised San Diego Comic-Con as the Avengers: Doomsday trailer rocks Hall H with exclusive footage. Robert Downey Jr.'s Doctor Doom sits on a throne while Vanessa Kirby's Invisible Woman narrates his broken past, teasing Avengers, Fantastic Four, Thunderbolts and X-Men uniting before the Dec. 18 release.

Key Takeaways

What did Comic-Con fans actually see?

According to Variety, Feige blindsided Hall H with exclusive Avengers: Doomsday footage not framed as a wide public drop. The reel opens on Victor Von Doom, played by Robert Downey Jr., seated on a throne.

Vanessa Kirby's Invisible Woman narrates Doom's fractured persona. "Victor was always the smartest guy in the room," she says, adding that "he used to be different." The cut intercuts rapid looks at the stacked cast, including Thor, Captain America, Loki, Cyclops, Magneto and others.

Why does this Doomsday footage matter now?

The Hall H tease lands after a year-long hype cycle. Marvel released four teaser trailers last December to start the countdown, featuring Chris Evans' Captain America with a child, Chris Hemsworth's Thor with daughter Love, the Fantastic Four meeting Black Panther and the Wakandans, and the official MCU debut of Fox's past X-Men team.

That runway points to a tentpole built as a massive crossover. For fans tracking where to catch MCU and streaming alerts, BlasterPost's Streaming & TV Alerts hub keeps the latest theatrical-to-platform watch notes in one place.

Who is lining up against Doctor Doom?

Variety reports the cast is headlined by Downey as Doctor Doom, alongside Avengers regulars Evans, Hemsworth, Paul Rudd, Sebastian Stan, Anthony Mackie and Simu Liu. The Fantastic Four and Thunderbolts contingents include Pedro Pascal, Vanessa Kirby, Joseph Quinn, Ebon Moss-Bachrach, Florence Pugh, David Harbour, Wyatt Russell, Hannah John-Kamen and Lewis Pullman.

Fox-era X-Men stars crossing into the MCU for Doomsday include Patrick Stewart, Ian McKellen, James Marsden, Kelsey Grammer, Alan Cumming, Rebecca Romijn and Channing Tatum. MCU fans still have to wait until Dec. 18 to see the finished film, but the Comic-Con exclusive made the scale unmistakable: Doom is the fulcrum, and nearly every major Marvel lane is being pulled into the collision.

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