After "What If...?" Season 1 finished airing on Disney+, Marvel Studios chief Kevin Feige and producer Brad Winderbaum revealed it could crossover with the main MCU — even calling it "essential viewing." So it comes as no surprise that one of the show's biggest characters will possibly show up during "Doctor Strange in the Multiverse of Madness." The first episode of the animated series sees Peggy Carter (Hayley Atwell) get the super-soldier serum instead of Steve Rogers (Josh Keaton) in World War II, before picking up the Vibranium shield as Captain Carter. But it looks like Captain Carter might be coming to the big screen in May 2022.
Marvel Studios also revealed a stunning poster for the "Doctor Strange" sequel to go with the second trailer, and it hides some surprising references. The art sees the titular sorcerer standing in front of the Sanctum Sanctorum's shattered window, and there are a number of characters hidden in the shards of glass. But Carter's Union Jack shield can be seen in the bottom right.
It seems like Carter's appearance is a safe bet, because the other shards show several other significant characters in the story, like Wanda, Mordo, Dr. Christine Palmer (Rachel McAdams), America Chavez (Xochitl Gomez), and Wong (Benedict Wong). It would seem a little strange to put Carter's shield in there if she isn't part of the multiversal adventure in some way. This also suggests that the other characters from "What If...?" could cross into live-action too — like the all-seeing Watcher (Jeffrey Wright), for example.
Basically, it's a great time to be a Marvel fan.
