- Two new ones Avengers: Doomsday cast rumors have surfaced online
- The Marvel movie could bring a major villain back from the dead
- It could also include an appearance from a fan-favorite Spider-Man star
Avengers: Doomsday may include two characters that have yet to be announced as part of its cast.
Over the weekend (November 15-16), a few new rumors circulated online that hinted Doomsday‘s original 27-strong cast may have grown during its ongoing development.
Potentially major spoilers immediately follow Avengers: Doomsday. Return now if you don’t want any surprises ruined prematurely.
The first piece of gossip concerns Thanos, also known as The Big Bad of the Marvel Infinity Saga that ran from 2008 to 2019. The Mad Titan, who was played by Josh Brolin, died in Avengers: Endgamebut it sounds like Brolin’s time in the Marvel Cinematic Universe (MCU) might not be over.
In an interview with Entertainment Tonight (ET) Online that was originally published on Nov. 10 but didn’t catch on until a few days later, Brolin hinted that he would be returning as Thanos in an upcoming Marvel movie.
“If Joe Russo [one of Doomsday‘s directors] comes to me, which he might have, I don’t know, and has an idea, then I might agree, probably pretty quickly,” Brolin teased.
Josh Brolin may be hinting at a potential Thanos return in an upcoming ‘MCU’ Avengers movie 👀 pic.twitter.com/UMUML9RHBb10 November 2025
Now that doesn’t confirm that Brolin is involved Avengers: Doomsday. Likewise, it doesn’t mean he’ll be back for another Marvel Phase 6 project, such as the aforementioned film’s sequel Avengers: Secret Wars.
That said, an appearance from Thanos would allow the Russo brothers to recreate one of the most memorable scenes in any Marvel comic. The said incident, which takes place in issue 8 of 2015’s ‘Secret Wars’ comic series, sees Doctor Doom – in his God Emperor form – kill Thanos by ripping out his spine.
It’s a scene that would be too graphic to appear in Doomsdayi.e. a Marvel film that will likely receive a PG-13/12+ rating before release. Nevertheless, it would sell how powerful Robert Downey Jr’s Doom is if he makes light work of the only supervillain to defeat the Avengers in the MCU so far. Any chance we could see a more family-friendly version of this scene instead, Marvel?
Is Tobey Maguire in Avengers: Doomsday?
The other rumor – an equally compelling one – concerns an appearance from the Tobey Maguires Spider-Man.
According to industry insider DanielRPK (thanks to the AvengersUpdated X/Twitter fan account for the site), Maguire’s Peter Parker will reportedly appear in Avengers 5also.
However, it’s worth taking this speculation with a giant grain of salt for now. Sure, Doomsday is the first part of a two-part story that will bring Marvel’s Multiverse Saga to a close. So the chances of Maguire’s loved one taking on the infamous webslinger appearing in another MCU film are pretty high.
For me, however, Maguire’s next – and potentially last – turn as a wallcrawler would be a better fit Secret Wars. Its predecessor should focus on setting up Downey Jr’s Doom as an unstoppable force that, depending on who you ask, will save or destroy the multiverse. Secret Wars was then supposed to be about Earth’s Mightiest Heroes teaming up with other heroes from other cinematic franchises, including Maguire’s Spidey defeating Doom ahead of the MCU’s soft reset.
But what do you think? Want Thanos and/or Maguire’s Spider-Man to show up Avengers: Doomsday? Tell me in the comments.
When you have, read about when Doomsday‘s first trailer may be released. So find out everything we know about it so far Avengers: Doomsday.
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