4. Riddler

Of course, there is absolutely no list complete without the inclusion of the Riddler in the Batman villain series. After all, not only does it come up with a lot of intriguing puzzles in order to confuse Batman, but he is definitely one of the most intimidating villains, not in the sheer strength of size, but due to the confusion he creates.

He has been in and out of the Batman comic series, but his entry is always intriguing and definitely mesmerizing for the people that would like a showdown between Batman and this wonderful villain.

The Riddler is responsible of using riddles to get Batman to solve puzzles; if he does so, the people or victims get freed. If he is unable deadly consequences follow. So, you do realize that the Riddler is one of the toughest components in the game of cat and mouse with Batman and Batman always triumphs.