Severus Snape
"It was the most haunting yet pleasant sound of perfect rhythm and symmetry. Bony fingers held the wand with as much care as a mother does a newborn, and the emaciated man, with bone-white skin, tapped the wand on the black cauldron, his flowing black robes not a hindrance at all, the long and thick sleeves not even causing a single disturbance. And the man with oily hair which reached his shoulders, and rottish teeth that resembled a shark's, whipped around to, once more in his long miserable life, grab a flask as empty as his soul."
Personality: INTJ: The Spy, The Scientist
I: Introverted - Prefers using time in isolation, away from the influence of others. Does not participate in any activities that include others unless forced to.
N: Intuition - Prefers making decisions based on personal intellectual guesses than relying on simple deduction. Is capable of coming to correct conclusions with very little evidence through the use of theoretical, hypothetical, and philosophical analyzation.
T: Thinking - Prefers making most of his choices based on cold hard logic rather than taking into account the feelings of himself or others. Is a sociopath that is incapable of empathizing with others.
J: Judging - Prefers completing goals, duties, and work as efficiently as possible, rather than procrastinating.
This person is a veritable genius, not simply a person who can memorize books or use information to come to logical conclusions. Think of information gathering through the mind and senses as a water filter. This person has the largest space to fill with the highest quality water filter, thus giving him a pool's worth of purified information. Those with low levels of intelligence have a small space to fill with a low quality filter, thus giving them a bucket's worth of dirty water.
This is the type of person that could become a master in whatever field they chose with only a little bit of materials and information.
He is a sociopath, unable to empathize with others, unconcerned with the well-being of others unless it concerns him on a personal level. Will not hesitate to make others suffer if it brings him a step towards his goals.
Name: Severus Tobias Snape
Birth: January 9, 1960 - Spinner's End, Cokeworth, Midlands, England, Great Britain
Height: 5'9 - Sirius was described to be "rather taller" than Snape. If Sirius was an inch taller than Snape, the distinction would not have been made. If he was simply "taller" then I would have guessed 2 inches. But Sirius is decribed as "rather taller". This gives me the impression that Sirius was 4 inches taller than Snape. Now, both Draco and Bellatrix are 6'1, and Harry at the end of the series is 6'0 and he describes Sirius as tall. So my guess is that Sirius is 6'1 with Severus being 4 inches shorter.
Figure: Skinny - Snape is described as someone who walks with a spidery gait, which tells me that his body is not as well-nourished as it should be, which certainly fits into the theme the author presented us.
Attractiveness: Repugnant - Contrary to what many believe, Severus Snape does not look like Alan Rickman. In the books, Severus Snape is described as someone with greasy hair, yellow jagged teeth, and a sickly appearance.