Based on what we know about the next Doctor Strange film and the upcoming Spider-Man: No Way Home, the Marvel Cinematic Universe (MCU) will be deluged with characters who are non-MCU Marvel heroes and foes.

For example the third MCU Spider-Man film, will return Al Molina as Doctor Octopus (last seen in Spider-Man 2) and Jamie Foxx as Electro (seen in The Amazing Spider-Man 2). These two villains were part of defunct film universes which has led to speculation that Spider-Man: No Way Home might loosely adapt the Spider-Verse storyline from the Marvel Comics and even the animated film Spider-Man: Into the Spider-Verse. 

Meanwhile, the title of the second Doctor Strange film, Doctor Strange in the Multiverse of Madness, clearly gives away that the good sorcerer will be grappling with the multiverse and other characters from extinct film universes will appear. The film will even feature the Marvel Comics superhero America Chavez (Xochitl Gomez), who has the ability to punch her way through the multiverse. It’s an ability that Doctor Strange will find useful when he teams up with her. 

We’ve been teased with the concept of the multiverse as it was mentioned in Spider-Man: Far From Home and with the appearance of Evan Peters as Quicksilver in the WandaVision TV show. Though Peters’ appearance turned out to be stunt casting (SPOILER: he actually was not Quicksilver), we were teased with the concept of a multiverse during the post-credits scene of the final episode when Wanda Maximoff hears the cries of her children who no longer exist in the MCU. 

The people behind the MCU films have been tight-lipped about who will appear in these two films. This has fed  rampant speculation among fans, with the popular theory that former Spider-Man actors Tobey Maguire and Andrew Garfield will turn up in some capacity in Spider-Man: No Way Home, while the speculation has exploded as to who will appear in Doctor Strange in the Multiverse of Madness. 

It is fun to speculate and theorize about this since in some way the appearances of these non-MCU Marvel characters support the concept that those abandoned film universes are still valid for us. Of course, fans of those films and characters do not need new film appearances to validate the love they have for those films which are forever treasured. Still, it is a nifty possibility that they will make some kind of comeback. 

Who should appear in the upcoming MCU films that deal with the multiverse? There are plenty of characters to choose from including some we never saw based on casting considerations at one time. Here is a list to ponder…

10. Tom Hiddleston as Thor Odinson

Most fans of the Thor films know that Tom Hiddleston, who rose to fame playing Loki, originally tested for the God of Thunder himself. Supposedly he impressed the filmmakers of Thor enough to be offered the role of Loki as a consolation. 

9. Dougray Scott as Wolverine/Logan

We all know Scott was originally cast as Wolverine in the first X-Men until an accident during the filming of Mission Impossible II forced the character to be recast with Hugh Jackman. While we all breathed a sigh of relief it will be fun to see how Scott would have seemed as Wolverine if he turns up in the next Doctor Strange film. 

8. Emma Stone as Spider-Gwen/Gwen Stacy

There are rumors that Miles Morales will at least cameo in Spider-Man: No Way Home, and although that would be terrific, it would be just as much fun to see other Spider-Verse characters like Spider-Man Noir, Spider-Ham and especially Spider-Gwen who must be played by Emma Stone since she did so well playing Gwen Stacy.

7. Robert Downey, Jr. as Doctor Strange/Tony Stark or Stephen Strange

It was recently revealed there was a cut scene in Avengers: Infinity War where Tony Stark and Stephen Strange swapped outfits. This led to an intriguing thought of having Downey, Jr. portraying Stephen Strange or at least the Sorcerer Supreme as seen in an alternate version in the comic books. 

6. Sairose Ronan as Wanda Maximoff/Scarlet Witch

Ronan was director Joss Whedon’s first choice for playing Wanda Maximoff in Avengers: Age of Ultron. Imagine how the role would have been like if she wound up playing Wanda instead of Elizabeth Olsen? Ronan’s appearance would bridge WandaVision and Doctor Strange in the Multiverse of Madness perfectly.

5. Joaquin Phoenix as Doctor Stephen Strange

The actor who owned the role of the Joker actually turned down the role of the Marvel wizard in Doctor Strange, mostly because he wanted to avoid a multi-film commitment. For Doctor Strange in the Multiverse of Madness, Phoenix showing up as Stephen Strange would be a fun meta joke as the two doctors meet.

4. Emily Blunt as Black Widow/Natasha Romanoff

Before Scarlett Johansson was cast as the Russian super spy, Blunt was the original choice to play the hero. Now, she is the fan favorite to play Sue Storm in the upcoming Fantastic Four reboot. If that happens, seeing her as Black Widow will be a blast.

3. Chris Evans as the Human Torch/Johnny Storm

The much-maligned, early Fantastic Four films need to be represented somehow. Plus, Chris Evans’ role as Johnny Storm not only stole the films, but helped launch his career. It would be even better if Evans could portray both the Human Torch and Captain America at the same time!

2. Tom Cruise as Iron Man/Tony Stark

As outrageous as it now sounds, Tom Cruise would probably have been able to pull off a very decent version of billionaire playboy Tony Stark if an Iron Man film was done much earlier. There isn’t any way to tell unless we see Cruise appear as Stark in the next Doctor Strange film as is rumored.

1. John Krasinsky as Captain America/Steve Rogers

When it came down to the finalists to play Captain America in Captain America: The First Avenger, Chris Evans beat out John Krasinsky, who is now a fan favorite to play Reed Richards in the MCU version of the Fantastic Four. As great as Evans was as Captain America, no one can deny wondering how Krasinsky would have pulled off the iconic superhero. The multiverse-centric MCU films is the best way to let us see this casting.

Do any of you have any alternate castings of Marvel superheroes that you think should appear at some point? How about the Marvel Netflix heroes or those from Agents of S.H.I.E.L.D.? Drop a comment!