Doctor Strange sequel writer talks about big-name cameos

Ever since officially unleashing the multiverse in Loki, the Marvel Cinematic Universe has largely used it as an excuse for payoffs and fan-service. That was basically the whole premise of What If…?, with its alternate versions of heroes and ultimate mega-villain (Ultron with the Infinity Stones), and it helped bring untold mountains of cash to Sony and Marvel by allowing for three different Spider-Mans to meet up in Spider-Man: No Way Home.
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