The Brain

"Gee Brain, what do you want to do tonight?"

- Pinky

"The same thing we do every night, Pinky — try to take over the world."

- Brain

Brain is small laboratory rat who is trying to conquer the world. He has a oversized brain, and is very knowledgeable. However, his plans always fail, mostly because of his partner and only friend Pinky, who is very dumb and always messes the plans. But Brain doesn't seem to care, and always has a new trick up his sleeve.

Story
Both Brain and Pinky are laboratory rats who underwent a experiment to make them rational. The experiment had different results is each of them, turning Brain into an extremely knowledgeable rat, and Pinky into an extremely stupid rat. Brain then decided he would use his superior knowledge to take control of the world and turn the humans into his slaves. He conviced Pinky to aid him on his plans, and the two of them are always trying something to achieve world domination.

Personality
Brain is very knowledgeable, which makes him a calm and over-confident “person”. He never, ever, loses his cool, even when Pinky commits stupid errors that messes his plans completely. He also seems to be egoccentric. However, he is not truly evil and it is implied that one of his reasons for world domination is because he believes he can help the world that way. He will never resort to murder to accomplish his goals and deep down he does care about Pinky.

Villains similar to him

 * Brain Gremlin: Both have developed in mutations due to science experiments, and plan to use their knowledge to gain control of the world.


 * Zim: Both have a completely idiotic henchman who aren't evil at all, as for Zim, his henchman is GIR.