Captain Marvel is finally confirmed for Untitled Avengers. Brie Larson joins the cast for filming in Atlanta. It has been over a year since Larson joined the Marvel Cinematic Universe as Captain Marvel. Marvel’s been hesitant to confirm if or where Captain Marvel/Carol Danvers would appear. It's officially confirmed that she will appear in Avengers 4. With her not expected to be in Avengers: Infinity War, this will be the first time she interacts with fellow heroes of the MCU.