Owen Reece, a.k.a. Molecule Man, is perhaps the most underestimated villain in Marvel Comics. Initially portrayed as a timid scientist with low self-esteem, Reece later discovers that he has ...

Thanos is a feared Marvel villain, but there are many bad guys out there who are much more powerful than the Mad Titan.

While Doctor Doom is set to be the next big bad in the MCU (Marvel Cinematic Universe), there should be more prominent villains in the future, especially with another Avengers film also on its way.