Namor

Namor, King of Atlantis, tired of the surface dwellers polluting his oceans, and began contemplating whether or not to attack the ground above, or simply leave them be. After kidnapping Sue, Namor gave her a choice, stay as his queen, or he’ll attack the surface.

Betrayed by his army after they attacked earth, Namor helped the Fantastic Four save their city, and Namor returned to Atlantis to rule once again.

Namor the Sub-Mariner returns in Avengers, but this time (although he’d never admit it) he needs the Avengers’ help! A barbarian called Attuma has overthrown Atlantis, and he’s threatening to invade the surface world.

Attuma created a device that created earthquakes, causing massive trouble for both Atlantis and the surface world as well. The Avengers come to Atlantis and team up with Namor to fight of the coup orchestrated by Attuma.