Izaya Orihara
You’d probably argue that Izaya isn’t much of a villain, but he kind of is. He’s an underground information broker which means he knows everything about everyone. He loves starting fights with Shizuo that always end up in a chase.Izaya’s looks certainly give a lot to the villain aspect; he has a very devious and conniving expression plus that coat with the fur doesn’t help at all.
Johan Liebert
Johan is from Monster and is truly a monste. He’s been described as the anti-Christ figure with a description of “a beast with seven heads and ten horns.” Now how could you possibly say that’s not evil? He’s a master manipulator with amazing exploitation skills. He doesn’t kill anyone. He manipulates somebody else to do the killing. It’s like he doesn’t have a single drop of blood on his own hands.
Light Yagami
Light is very similar to Johan in many ways, especially in the ways of manipulation. Of course the only way Light kills people is by using the Death Note, but still. He’s conniving and manipulative, evil and not right in the head. Even though his main goal is to rid the world of all criminals, he still goes way too far with everything.
Medusa
Yes of course there would be a villain named Medusa. There always has to be, right? Well in Soul Eater Medusa is certainly one of the main villains. She’s wicked and is such a huge temptress when it comes to all things evil. With all her manipulation, she’ll get anyone to do anything that she wants them to. On top of being evil incarnate she is a witch, which means she has incredible powers. Snake-like powers to be exact.
Naraku
Now this guy is my ultimate favorite guy out of all the villains. He is the reasonInuYasha exists. He is the main driving force behind all the other characters. Naraku is the reason why Inuyasha has anger issues. Naraku used to be a man named Onigumo who was full of hatred for all of mankind. That’s why he became so powerful in such a short time.
Orochimaru
For one a villain has to be completely evil, right? Most of them seek immortality and the death of all mankind? Well Orochimaru got the whole invested in immortality gene. He performed so many unethical experiments on innocent lives just to become immortal. Performing experiments meant that some of those innocent people had to die. Which is why this man is evil.
Sosuke Aizen
Ah yes…Aizen. How could I have almost left out this powerful villain? Being the former captain of the 5th Division in the Soul Society, he feels it is his duty to wage a war on the Soul Society. He’s definitely on the smarter side, having his entire plan thought out beforehand, even when he was still captain. He’s actually very kind despite being a Bleach villain. He was also very well-respected. Who knows what really tipped him off to make him evil. You might just have to watch all 16 seasons, over 300 episodes, to find out.
The Major
And there’s this guy…how do I even describe this guy? He was chosen by Adolf Hitler to execute a very top-secret mission to perfect vampirization. Any person involved with real and/or anime Hitler is pure evil, right? Well the Major just loves his warfare and hates life so much. He’s the ultimate villain.
Vicious
The villain of Cowboy Bebop is the main antagonist. He’s cold hearted, bloodthirsty, power hungry and very ambitious. I guess all villains have to have those traits. He will literally kill any person that gets in his way of what he desires. Occasionally he’ll show a bit of sympathy when having flashbacks of certain memories. Like any other villain, a scowl is permanently on this man’s face.