Marvel All But Confirms Which Hero Will Betray The Avengers In Doomsday

Published Nov 12, 2026, 4:45 PM EST Sean is a senior writer for ScreenRant and has been writing about new TV releases since December 2023. He has received multiple advance screenings of popular shows and ideated his own coverage read by hundreds of thousands of readers. Sean is a self-published author of a Western novel. Sean has also written award-winning opinion pieces related to local politics while getting his Bachelor's degree in journalism. Warning! This article contains SPOILERS for VisionQuest episode 8.One of the Marvel Cinematic Universe's main heroes could end up betraying the Avengers in Avengers: Doomsday, and the finale of VisionQuest has all but confirmed who that traitor is. As Marvel has revealed new images and details in the lead-up to Avengers: Doomsday's December 18 release date, speculation about the movie has gone wild. One of the most popular fan theories is that Doctor Doom's Latverian Witches are actually heroes who have betrayed the Avengers. Given the witches' masks and the secrecy surrounding them, many fans have speculated that one of the Avengers could betray the rest of the heroes and join Doctor Doom. Though that idea was purely speculation before this point, the recent finale of VisionQuest included a post-credits scene that strongly supports the idea that Doom is poaching MCU heroes to be his lackeys. In the second of VisionQuest's two post-credits scenes, Wanda Maximoff's death at the end of Doctor Strange in the Multiverse of Madness replays, with Wanda bringing down Mount Wundagore on top of herself. Doctor Doom, however, lifts the rubble off Wanda, tells her to awaken, and declares that the Scarlet Witch's power will be his. It very overtly set up Scarlet Witch working for Doctor Doom against her will, but VisionQuest may have also set up another hero turning traitor. VisionQuest's Post-Credits Scene Implies Doctor Strange Is Assisting Doctor Doom VisionQuest's post-credits scene very clearly establishes that Wanda will be working with Doom, but it also had a more subtle implication. As X user Olawaseun pointed out, Doctor Strange was the only actual witness to Wanda's death, as America Chavez and Wong fled through a portal before she decided to destroy the Darkhold. Doom couldn't have found Wanda's body without Strange's help, which all but confirms that Strange is in league with Doom. There are, admittedly, a few ways Doom could have found Wanda's body. Mount Wundagore's collapse wasn't subtle, and Doom is smart enough to piece together the site of her death. Alternatively, America or Wong could have told Doom, as they also knew the last place Wanda was seen alive, even if they didn't directly witness her death. However, even with these caveats, there's still evidence that Strange has betrayed the Avengers. As one of the most prominent sorcerers in the MCU, Doctor Strange has an obligation to protect the multiverse from threats like Doctor Doom. As part of his duties, he would almost surely want to make certain that Doom couldn't resurrect the Scarlet Witch and claim her power as his own. The fact that Strange apparently didn't try to stop Doom from doing that, or at least move Wanda's body or destroy it, implies that Strange is working with Doom. Unfortunately, only Avengers: Doomsday itself will be able to reveal why Strange is potentially working for Doctor Doom. Strange always has a reason for even his most surprising decisions, so it's possible that he decided working with Doom was the best way to secure the safety of the multiverse. Alternatively — and perhaps more likely — Doom may have also possessed Strange with his magic. With Scarlet Witch & Doctor Strange, Doom May Be Impossible To Defeat In Doomsday Via MovieStillsDB If Avengers: Doomsday does confirm that Doctor Strange is either working with or possessed by Doctor Doom, it could be the final nail in the Avengers' coffin. Doctor Doom alone is one of the most powerful magic wielders in the entire multiverse, but he now has the power of both the Scarlet Witch and Doctor Strange. Those three alone could level an entire universe through their combined power, and they may be strong enough to destroy the Avengers outright. Compounding that problem is the fact that Strange and Wanda both working for Doom robs the Avengers of two of their few magic wielders. Without them, the Avengers only have Clea, America Chavez, Wong, and Loki. While those characters are strong, there's also a chance that some of them fall under Doom's spell as well and become other Witches of Latveria. Even if they don't, those four sorcerers may not be enough to rival the combined might of Doom, Strange, and Wanda. Even if the Avengers do manage to put up a fight, the bottom line is that VisionQuest just made Doctor Doom an even bigger threat than he already was. Scarlet Witch is a ticking timebomb and one of the most potent sources of magic in the MCU. Adding Doctor Strange to that mix would be catastrophic, and it may be enough to turn Avengers: Doomsday into a bloodbath for the Avengers. Release Date 2026 - 2026-00-00 Network Disney+ Showrunner Terry Matalas Directors Vincenzo Natali, Christopher J. Byrne, Gandja Monteiro, Terry Matalas Writers Terry Matalas, Cindy Appel, Nicole Falsetti, Christopher Monfette, Matthew Okumura, Michael Taylor Franchise(s) Marvel Cinematic Universe Creator(s) Terry Matalas