However, some villains have risen above the rest as the Avengers’ greatest enemies. From space-faring purple tyrants to steel-clad mystical conquerors, the Avengers have faced the worst evils ...

The Avengers gained their reputation as Earth’s Mightiest Heroes by fighting some of the greatest villains in the history of comics. The Avengers have had some epic adventures, and the villains were a ...

Ultron agrees to keep its source code open for Iron Man to monitor, and is the only villain to stick with the West Coast Avengers. Absorbing Man and Crimson Dynamo refused to work with Ultron ...