15 Greatest Marvel Comic Book Villains Of All Time

6. Galactus

When it comes to sheer power, it's pretty tough to beat a villain who spends most of his time eating worlds! In fact, the only reason he doesn't place higher here is because he's failed to gobble up Earth on so many occasions (usually thanks to the timely intervention of the Fantastic Four), but that doesn't mean Galactus isn't a formidable and very frightening threat.

A glimpse at a possible future where Thor is the last living being left on the planet showed that he's still causing problems thousands of years from now, but don't go thinking old age has slowed him down, because Galactus actually punched the God of Thunder through the Moon! His hunger is never satisfied, and that makes Galactus a threat to every planet in the universe.