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After Robert Downey Jr. announced his MCU return during the San Diego Comic-Con 2024—even though it’s not as the fan-favorite Iron Man—Avengers: Doomsdayquickly became one of the most highly-anticipated upcoming projects under the Marvel banner.

“That makes no logical sense”: Marvel Fans Need to Calm Down With Their 1 Demand for Tom Holland’s Spider-Man in Avengers: Doomsday

With the confirmed appearances of Pedro Pascal, Benedict Cumberbatch, and a few members of the Thunderbolts team, the movie is on everybody’s lips.

However, while the anxiety mounts over which other characters might appear in the movie, we came up with a list of 5 Marvel superheroes who should pop up on screen inAvengers: Doomsday. From fan-favorite characters to legendary Avengers, here are five superheroes who deserve significant screen time in the upcoming movie.

Tom Holland as Spider-Man

1. Tom Holland’s Spider-Man

Ever sinceRobert Downey Jr.announced his decision to return to the MCU, not as Iron Man, but as Doctor Doom, fans have been wondering about how this alteration might impact Tom Holland’s Spider-Man. Given how Peter Parker considered Downey Jr’s Iron Man as his mentor in the MCU, and how his death inEndgamesignificantly affected Peter, it became a hilarious situation for fans to wonder how Holland’s Spider-Man might react to Downey Jr’s new character.

“That makes no logical sense”: Marvel Fans Need to Calm Down With Their 1 Demand for Tom Holland’s Spider-Man in Avengers: Doomsday

Meanwhile, considering howTom Holland‘s Spider-Man has been one of the most popular versions of the character ever put on screen, and the way he sacrificed the world’s memory of Peter Parker to save the multiverse inSpider-Man: No Way Home, Holland has become top favorite character whom fans want to see inDoomsday.

Overall, while it’s always fun to see Spider-Man in an Avengers crossover,Doomsdaycould actually serve as an opportunity to explain the spell at the end ofNo Way Home.

Deadpool & Wolverine’s Brutal Fight Scene Proves MCU Desperately Needs to Give 1 Key Player a Stupendous Power-up Before Robert Downey Jr Returns in Avengers: Doomsday

Given how, after the 2021 movie, the Avengers forgot about Peter Parker and only remember Spider-Man, the upcoming 2026 movie could play with this storyline of what exactly the Avengers remember about Spider-Man and their history fighting alongside him.

2. Ryan Reynolds’ Deadpool

Another fan-favorite character in line isRyan Reynolds‘ Deadpool, whom fans want to see inAvengers: Doomsday, now that he has officially become a part of the MCU. Well, it all started after his latest iterationDeadpool & Wolverineetched people’s minds with one question: why was Thor crying? Since then, fans have become curious to unravel the answer to that question, by desperately trying to bring him in the 2026 project.

Deadpool & Wolverine’s Brutal Fight Scene Proves MCU Desperately Needs to Give 1 Key Player a Stupendous Power-up Before Robert Downey Jr Returns in Avengers: Doomsday

Moreover, asDeadpool & Wolverineshowed Wade Wilson’s desire to team up with the Avengers, by showing him applying for a place on the team, it seems only fair to let him appear inDoomsday.

Well, although in the 2024 movie, Happy Hogan seemed to be determined that Deadpool wasn’t fit to be an Avenger, we all know that theMerc With A Mouthhas a way of getting what he wants.

Ryan Reynolds

Therefore, by bringing in Deadpool inAvengers: Doomsday, the MCU could allow the savage mercenary to contribute his hilarious two cents to the serious events of the movie. Now that Iron Man is gone—who was previously known for his sarcastic remarks, Ryan Reynolds’ character could somewhatfill that space by making jokesabout potential plot holes and conveniences before the audience attempts to do so themselves.

3. Chris Hemsworth’s Thor

If Deadpool appears inAvengers: Doomsday, thenChris Hemsworth‘s Thor will become an essential appearance to fulfill the prophecy and finally answer the question of “why was Thor crying”. But overall, even without Deadpool’s appearance, Thor could be a phenomenal character to pop up on screen. Given how he has been a member of the MCU’s Avengers, fighting alongside the team since day one, Hemsworth’s character could be a cool addition toDoomsday.

Further, recalling when audiences last saw Thor inLove and Thunder, he was seen raising his adopted daughter, Love, while simultaneously continuing his superhero role of protecting innocent lives, he could easily appear in the 2026 movie, because he’s still worthy. Overall, since Thor’s future in the MCU remains uncertain, with an incomplete storyline, Chris Hemsworth’s appearance inAvengers: Doomsdaycould give his character a good ending in the MCU timeline.

Chris Hemsworth in Thor: Love and Thunder | Marvel Entertainment

4. Simu Liu’s Shang-Chi

Simu Liu‘s Shang-Chi was introduced in a standalone film during Phase 4. Considering how the master of kung fu and the new wielder of the otherworldly Ten Rings was welcomed by Wong, Bruce Banner, and Captain Marvel to be a part of the Avengers team, by the end of his 2021 solo movie, Liu’s character could have great potential, if brought back inAvengers: Doomsday.

Avengers: Doomsday Theory – Robert Downey Jr’s Greatest Threat Is in Agatha All Along

Previously Shang-Chi was expected to play a major role inAvengers: The Kang Dynasty,before it underwent major changes and Marvel droppedJonathan Majors’ Kang to focus on Robert Downey Jr’s Doctor Doom.

Shang-Chi and the Legend of the Ten Ringsdirector Destin Daniel Cretton was originally set to helmKang Dynasty, which led people to believe that Simu Liu would be central to the story.

But now that plans changed, and MCU booted Jonathan Majors to bring in Robert Downey Jr., even fans’ hope of seeing Shang-Chi as a pivotal hero shattered. But again, while thestory has shifted its focusfrom Kang to Doom, Simu Liu’s character could still appear as a part of the Avengers and prove to be another new member, perhaps alongside Deadpool.

5. Anthony Mackie’s Captain America

Last but not least in line isAnthony Mackie‘s Sam Wilson, aka the new Captain America, who should have a significant role inAvengers: Doomsday. Considering how he’s taking up the mantle after Steve Rogers retired by the end ofAvengers: Endgame,leading him to have his upcoming solo iteration,Captain America: Brave New World,Mackie’s character could finally appear as part of the Avengers.

What Will Be Chris Evans’ Role in Avengers: Doomsday if Anthony Mackie Is Already the Captain America?

While Sam Wilson isset to facethe Leader and the Red Hulk in his upcoming film, he is expected to be ready to face off against Doctor Doom, by the time the 2026 movie hits the screen. Overall, with the growing threat in the universe, it would be delightful to see Sam Wilson’s Captain America becoming the new team leader inAvengers: Doomsday.

Although this might be a controversial decision, we believe that whether Steve Rogers or Sam Wilson wields the shield, Captain America will always be the best choice for the Avengers’ team leader. AndDoomsdaymight finally offer Anthony Mackie’s character the opportunity to be that leading hero bellowing the warcry: Avengers Assemble!

Avengers: Doomsdayis scheduled to release on June 20, 2025.

Krittika Mukherjee

Senior Writer

Articles Published :3217

Krittika Mukherjee is a Senior Entertainment Writer at FandomWire, majorly focusing on films, TV shows, and celebrity news with over 3,000 articles published. With an educational background in Journalism, and a keen interest in filmmaking, Krittika blends factual precision with creative flair, when crafting her editorials, or dissecting fan theories.Her coverage often includes news and analyses of critically acclaimed films, celebrity news, and franchises like the Wizarding World, LOTR, DC, and MCU—particularly Harry Potter, Fantastic Beasts, Superheroes, and fan theories. As a Wizarding World aficionado, Krittika has spent countless hours exploring hidden backstories, unadapted book moments, spells, and trivias surrounding J.K. Rowling’s lore.An imaginative writer with a way with words, Krittika has worked as an entertainment journalist for the past two years and a web content writer for a year. She brought her experience and expertise to FandomWire to pursue her desire for sipping coffee while dissecting films and tracking celebrity drama.

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Anthony MackieAvengers: DoomsdayChris HemsworthRobert Downey Jr.Ryan ReynoldsSimu LiuTom Holland