31. Professor Zoom

Super speed for Reverse Flash Eobard Thawne may be his only superpower, but Zoom has not let that slow him down. Obsession drove him quickly to developing a plot to "become" and replace Barry Allen. He was so committed to taking over Allen's duties as Flash, he decided to play house with Allen's wife, Iris. When she didn't take to it, Zoom did what any man in his situation would have done: Vibrate his hand into her head, killing her.

Subtlety is not one of Zoom's strong suits (he is a member of the Secret Society of Super Villains, after all), but he does get results. Also, his time traveling ways help him get around certain things like schemes not going according to plan, or even his own death.

Zoom may be a villain too localized for his own good, but his murdering of Iris is an event people still talk about. We can see him getting an arc just as good as his turn as Barry Allen's nemesis, and we hope it happens sooner rather than later.