Episode 45: Ultron

A self-aware and highly intelligent robot created by Hank Pym, the character is usually depicted as a dark reflection of his creator and harbors a strong grudge against him. Ultron's goal to destroy humanity has often brought him into conflict with the Avengers, who always managed to thwart and destroy him, but he would return time and time again. While he usually controls a legion of mindless drones known as Ultron Sentries to help him achieve his goals, Ultron has also been part of several supervillain teams.