5) Scarlet Spider
While Ben Reilly may be the first name which comes to mind when thinking about the Scarlet Spider, I’ll get to him a little later. Instead, it’s the Kaine Parker version who could ultimately factor into these movies in a really interesting way, though it will take some time.
Originally introduced as a scarred and borderline insane clone of Peter Parker’s, he’s eventually healed, steals one of Spidey’s suits and heads to Houston to become a reluctant hero known as the Scarlet Spider. That right there is a pretty much perfect premise of a spinoff movie, and following his journey as he leaves his villainous ways behind him would make for compelling viewing.
In recent years, the Spider-Man comics have really delved into the mystical side of the character’s powers, and much of that has been linked to the Scarlet Spider; should Marvel decide to touch on any of that, then further exploring it with by telling Kaine’s story would be really smart.