Source: cinemablend.com

4. Mongul

Are you not entertained?

Mongul is SUPER GREAT.

Mongul ruled Warworld, which was a giant gladiatorial deathmatch of a planet in space. But don't think that meant he just sat on his butt and watched people fight all day; he did not. He spent most of his time hitting people VERY hard in their faces, and crushing their skulls. He was what we in the comics criticism industry call "a total A-hole".

He was also notable for being the main antagonist of the classic Superman story, For the Man Who Has Everything. In this story, he gave Superman a birthday present: an alien plant thing that paralyzed you and caused you to hallucinate what you wanted most in the world. To free yourself, you had to kill your dream. That sucked. And it pissed Superman off.

If you were ever curious as to what popularized that red-heat-vision-eyed, angry Superman appearance, it was this comic book. Good comic book.