Deadpool Will Return for 'Avengers: Doomsday' and 'Secret Wars', Insider Says

Deadpool may be returning in a double dose in the MCU. According to insider DanielRPK, the character played by Ryan Reynolds will appear in both Avengers: Doomsday and Avengers: Secret Wars. It's worth noting that this information is not yet confirmed.

The possible participation of Deadpool in future Avengers films has been the subject of rumors for some time. In April, Reynolds stated that he had written material for the character's return, but said he no longer intended to feature him as the protagonist of a new solo production.

In July, the actor also stated that there will "eventually" be another Deadpool movie. Furthermore, Ryan appeared dressed as the Merc with a Mouth at SDCC during the Avengers: Doomsday panel, which fueled the rumors.

Everything you need to know about Avengers: Doomsday

The villain of the fifth Avengers movie will be Doctor Doom, played by Robert Downey Jr., the actor who portrayed the legendary Iron Man in the MCU's Infinity Saga and now takes on the role of the antagonist. Avengers: Doomsday will be directed by brothers Anthony and Joe Russo (Endgame), with a script by Michael Waldron (Loki) and Stephen McFreely (Endgame).

Marvel has already confirmed the main cast members for the new film, in one of the biggest MCU star reunions ever assembled. Returning from previous Avengers films are: Chris Evans as Steve Rogers, Chris Hemsworth as Thor, Anthony Mackie as Captain America, Sebastian Stan as the Winter Soldier, Paul Rudd as Ant-Man, Winston Duke as M'Baku, and Letitia Wright as Shuri/Black Panther.

Among characters introduced after Avengers: Endgame — in phases 4 and 5 of the MCU — we have Simu Liu as Shang-Chi, Danny Ramirez as Falcon, the entire new Fantastic Four (Pedro Pascal as Mister Fantastic, Vanessa Kirby as Invisible Woman, Joseph Quinn as Human Torch, and Ebon Moss-Bachrach as the Thing), almost the entire cast of Thunderbolts* (Florence Pugh as Yelena, Wyatt Russell as U.S. Agent, David Harbour as Red Guardian, Hanah John-Kamen as Ghost, and Lewis Pullman as Bob, the Sentry), and Tenoch Huerta as Namor.

The film also features the return of the classic X-Men from the old Fox movies, including Patrick Stewart as Professor X, Ian McKellen as Magneto, James Marsden as Cyclops, Alan Cumming as Nightcrawler, Kelsey Grammer as Beast, Rebecca Romijn as Mystique, and, introduced in Deadpool & Wolverine, Channing Tatum as Gambit.

Avengers: Doomsday opens on December 18, 2026.