Source: screenrant.com

7. Scorpion

Not all MCU villains got to wear neat costumes in their film debuts.  Some of ’em just showed up and were punched into unconsciousness, and then the credits rolled.

Mac Gargan, aka Scorpion, was one of those. He popped up in Spider-Man: Homecoming as a known criminal who was preparing to do a deal with the Vulture for superpowerful villain tech. But before he could get his hands on a cool tail or some claws, Spider-Man hopped in and beat them all up.

He’s mostly played as a pretty crazy dude in the film, and the Prowler even specified that he was too crazy to work with. The Prowler does business with a guy who flies around on huge turbined wings and a guy who shoots lightning.

Scorpion is a special case. It would be awesome to see him make a comeback as a badass member of Spider-Man's rogues gallery.

Give that guy a mech suit and let him play.