Doctor Doom's reign of terror is just beginning. Here's what to know about his role in the upcoming movie, 'Avengers: Doomsday,' including cast, release date and potential plot.

Also, Doom wants to revive the most powerful Scarlet Witch of all. You might have guessed by now: It's Wanda (Elizabeth Olsen). "Doctor Strange in the Multiverse of Madness" implies that Wanda dies, though we never see her body. That's where Franklin comes in, as Doom wants his abilities to revive Wanda.