- Primary Subject: Deadpool's potential appearance in Avengers: Doomsday
- Key Update: Ryan Reynolds sparked heavy fan speculation about Deadpool joining Avengers: Doomsday after crashing Marvel's SDCC panel in character.
- Status: Confirmed
- Last Verified: July 27, 2026
- Quick Answer: While Marvel hasn't officially confirmed it, Ryan Reynolds' surprise SDCC appearance in costume strongly hints Deadpool could appear in Avengers: Doomsday.
Ryan Reynolds made a surprise appearance during the recent Hall H presentation of Marvel Studios at San Diego Comic-Con 2026. Does it mean that Deadpool will show up in Avengers: Doomsday?
One of the biggest questions fans have regarding the upcoming MCU film is whether the Merc with a Mouth will have an appearance, considering the multiversal storyline. To this day, Marvel Studios remains mum on his rumored involvement, but fans continue to speculate on his return.
Is Deadpool Appearing in Avengers: Doomsday?
During the middle of the Marvel Studios Hall H presentation at San Diego Comic-Con, Ryan Reynolds made a surprise appearance in the crowd area while cosplaying as Deadpool in a gray suit.
Kevin Feige, the Russo Brothers, and the cast were speaking on stage to discuss Avengers: Doomsday when the actor showed up and asked a question about the film.
"This seems like an awfully expensive way to announce a film. When do you start filming?" Reynolds, as Deadpool, asked the people on stage.
Robert Downey Jr. responded, "It’s in the can, bro. Look around you. Did you bump your head?
After a short pause, Reynolds said, "I see. So there’s no additional photography, no overages, hot costs. Maybe last-minute additions? No further questions. Happy Hogan, fetch the Audi. We’re leaving." He dropped the microphone and walked out of Hall H afterwards.
Does this mean that Deadpool will have an appearance in Avengers: Doomsday? It is still hard to say, given how ambiguous the moment was, but his appearance in the middle of the film's discussion was very telling for many fans.
While there is no confirmation that the Merc with a Mouth will show up in Doomsday, this is a major clue about his potential appearance, and the speculation will continue in the coming months leading up to its release.
What to Expect in Avengers: Doomsday
Avengers: Doomsday follows beloved heroes from three distinct universes as they’re set on a deadly collision course and face an existential threat unlike anything they’ve ever encountered.
The star-studded cast includes Robert Downey Jr., Pedro Pascal, Vanessa Kirby, Joseph Quinn, Ebon Moss-Bachrach, Chris Hemsworth, Anthony Mackie, Sebastian Stan, Paul Rudd, Letitia Wright, Simu Liu, Tom Hiddleston, Winston Duke, Florence Pugh, David Harbour, Wyatt Russell, Lewis Pullman, Hannah John-Kamen, Danny Ramirez, Tenoch Huerta Mejía, Patrick Stewart, Ian McKellen, Kelsey Grammer, James Marsden, Rebecca Romijn, Alan Cumming, Channing Tatum, and Chris Evans.
The film is slated for release in theaters on December 18. It will also be available on Infinity Vision certified screens.
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