Harry Potter (Harry Potter)

Harry Potter is one of the only characters in existence whose popularity rivals that of the Avengers as a collective, so to see the two entities teaming up together would be absolutely awesome for fans around the world.

Potter is a powerful wizard and, as stated in the Willow Rosenberg entry on this list, magic is something the Avengers are sorely lacking is, so having him join their ranks would give them something they don’t already have and will definitely need in the future.

After graduating from Hogwarts, the next step would naturally be to join the big leagues of being a hero – and it really doesn’t get much bigger than joining up with the Avengers! He could really come in to his own alongside the likes of Thor and Captain America.