Apart from Professor X (Patrick Stewart), Doctor Strange in the Multiverse of Madness' cameos could include multiple other Marvel characters and actors, perhaps on an even bigger scale than Spider-Man: No Way Home. The Doctor Strange 2 Super Bowl trailer revealed the surprising return of Stewart as Charles Xavier, although whether it's the same version from Fox's X-Men movies or another multiverse variant remains to be seen. Nonetheless, the tease holds the promise of greater things to come, which continues the MCU's use of the multiverse as a means of bringing back characters and actors who've long departed iconic roles.
This, of course, was most prominent in Spider-Man: No Way Home, which brought back Tobey Maguire and Andrew Garfield's versions of Peter Parker, alongside villains from both Sam Raimi's Spider-Man trilogy and Marc Webb's two The Amazing Spider-Man movies. There was even room, briefly, for Charlie Cox's Daredevil, which could lead to bigger things, while there could've been more returning characters in the mix too, with concept art showing plans for Mysterio (Jake Gyllenhaal) to appear. No Way Home's cameos and returning heroes and villains showed just what's possible in the MCU's multiverse, but Doctor Strange 2 could raise the bar even higher.
Related: Doctor Strange 2 Super Bowl Trailer Breakdown: 26 Story Reveals & Secrets
Spider-Man: No Way Home didn't fully use the multiverse, which represents a key difference between that movie and Doctor Strange 2. In No Way Home, it was a plot device in order to bring back Maguire, Garfield et al, and to explore the identity and heroism of Tom Holland's Spider-Man. In Doctor Strange in the Multiverse of Madness, the multiverse is the plot, which means the movie
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