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 intelligent and brilliant. 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 have 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 in a extremely intelligent rat, and Pinky in a extremely stupid rat. Brain then decided he would use his superior intellect 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 brilliant, which makes him a calm and over-confident “person”. He never, ever, loses his cool, even when Pinky commit stupid errors that messes his plans completely. He also seems to be egoccentric.