Monica Rambeau has been part of the Marvel Cinematic Universe since 2019's Captain Marvel, in which she appeared in flashback as the child of Carol Danvers' friend and ally Maria Rambeau (who is herself the Captain Marvel of an alt-Universe seen in Doctor Strange in the Multiverse of Madness).
But in The Marvels, Monica, played by Teyonah Parris, finally takes on a starring role as a superhero alongside Carol Danvers and Kamala Khan, following up on her appearance in the WandaVision streaming series, in which she gained powers of her own.
