Three major MCU characters previously believed to be sitting out Avengers: Doomsday are now reportedly heading back into the fold. According to scooper MAJESTIC_ucm on X, Brie Larson’s Captain Marvel, Elizabeth Olsen’s Scarlet Witch, and Teyonah Parris’s Monica Rambeau will all be returning for re-recordings scheduled for April and May — ahead of the film’s December 18 release. None of this is officially confirmed by Marvel Studios, but the sourcing picture has been building for months, and it’s worth breaking down what we actually know.
Why This Story Has Legs
The re-recordings detail is new, but the broader claim — that these three characters are in Doomsday — has been circulating from multiple independent sources since well before this week. Insiders Alex Perez of The Cosmic Circus and Jeff Sneider of The Hot Mic have both previously reported that Captain Marvel will be a significant presence in the film. Perez went further, claiming she’ll be “one of the main characters” — not a brief cameo. James Mack, another scooper, added that Captain Marvel and Monica Rambeau could end up in direct conflict over competing loyalties between universes.
Teyonah Parris herself may have inadvertently added fuel to this particular fire. A promotional video she posted for her own brand last November showed her in a hairstyle fans immediately identified as Monica Rambeau’s — identical to the look used during her MCU appearances. That’s circumstantial, but it’s the kind of detail that doesn’t land in a vacuum.
The Marvels Set This Up Directly
The important context here: The Marvels post-credits scene left Monica Rambeau stranded in a parallel universe where she encountered a variant of her mother and the X-Men’s Beast. That wasn’t a throwaway moment. That scene was a setup — directly connecting Monica to the same alternate reality that the Fox X-Men cast is being drawn from in Doomsday. If the film is built around multiversal convergence, Monica isn’t just a nice-to-have. She’s a load-bearing plot element.
Captain Marvel, meanwhile, ended The Marvels having caused the rift that sent Monica through in the first place. The idea that she’d be working to undo that — potentially triggering the exact kind of incursion that brings the X-Men and the MCU into collision — is narratively coherent in a way that pure speculation usually isn’t.
Scarlet Witch: The Complicated Case
Wanda Maximoff is the trickiest of the three. MAJESTIC_ucm’s report frames her involvement as re-recordings rather than full reshoots, which has led to speculation that she may appear in a masked or obscured form — with a stand-in used during principal photography, Olsen only now providing voice work. That would track with the heavily rumored idea that Scarlet Witch is operating as one of Doctor Doom’s followers in the film, her face obscured by a costume. As we explored in our breakdown of the case for Scarlet Witch’s Doomsday return, the narrative groundwork for Wanda’s involvement has been quietly accumulating since Multiverse of Madness.
What “re-recordings” means in practice is worth noting: it refers to Automated Dialogue Replacement — actors re-recording lines in a studio after filming. It doesn’t necessarily mean new scenes. These characters may have already been filmed with stand-ins during principal photography last year, with Olsen, Larson, and Parris now being brought in to lay down the official voice performances.
What to Watch For
None of this is confirmed by Marvel. The studio’s official cast list still doesn’t include these three names, and they’ve given no indication that will change before the film arrives in December. If the re-recordings happen as reported in April or May, any additional cast confirmation would likely come through promotional reveals closer to the film’s release.
Avengers: Doomsday opens December 18, 2026. The picture of who’s actually in this film keeps getting larger — and this week’s reports suggest it’s larger still.