Wasp

Although Ant-Man was a founding Avengers member, and Hank Pym created Ultron, Ant-Man didn’t appear in the MCU until Phase II. We can say the same about the original Wasp, who was also a founding member. She even gave the team its name.

Marvel shouldn’t forget that, with the exception of Captain America, she’s been the team’s leader on the greatest number of occasions.

In the MCU, the original Wasp was lost in the Quantum Realm. However, it’s rumored that she'll have a major role in Ant-Man and the Wasp, so this could be a starting point for her. And since time and space don't exist in the Quantum Realm, Marvel can cast any actress to portray Wasp in any future Marvel movie.

There are plenty of story opportunities here, and it would be a shame if it didn't happen, especially since she is also one of the smartest among the Avengers, a team in which the males have established themselves as geniuses.

Read More: The Smartest Superheroes