Doctor Doom's Costume at SDCC Hints at Thor and Captain Marvel's Return

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San Diego Comic-Con 2026 has brought plenty of surprises thus far... and Marvel seems to be using it to hide some pretty big plot details about Avengers: Doomsday in plain sight.

Several Doomsday costumes have been on a rotating display at the Marvel Studios booth ahead of their big panel in Hall H. The first saw three separate "Latverian witch" costumes... each with its own separate color. But before we get into that, we have to talk about the symbols on the new Doctor Doom costume that Marvel has put on display.

In the photo, which can be viewed below, Doctor Doom's costume has two distinct symbols on either shoulder. And no, your eyes aren't deceiving you: On the right, we see Thor's hammer etched into a gold circle. On the left, we see the symbol for none other than Captain Marvel. Uh, what?

(Image credit: Jordan Farley/Future) Brie Larson was absent from the big Avengers: Doomsday live-streamed casting, but hasn't confirmed nor denied that she'll be featured in the upcoming pic. We've seen Thor fight Doom in the Doomsday trailers, but Captain Marvel has been completely MIA.

As for those color-changing Latverian witch costumes , fans think they're pointing to the return of Wanda Maximoff. The first costume, which you can see below, was green. Then it was replaced with an orange costume, followed by a purple costume, before they eventually brought out Doctor Doom's costume. It's worth noting that there are no "Latverian witches" in the comics. There is, however, a storyline where Doctor Doom kidnaps Wanda and manipulates her into working for him. The colors also may or may not represent the Infinity Stones... remember those?

If Marvel is indeed following the Hickman Avengers storyline, then the Infinity Stones do play a major part... especially when it comes to the end of the world.

(Image credit: Jordan Farley/Future) Avengers: Doomsday arrives in theaters on December 18, 2026. For more check out our guides to upcoming Marvel movies and shows as well as how to watch the Marvel movies in order .

For more on what's been revealed at SDCC, check out our San Diego Comic-Con 2026 live coverage and our SDCC 2026 schedule .