Severus Snape

Snape is a man of average height, with a lean, almost asthenic build. He has pale, yellowish skin, a long hooked nose, and shoulder-length black hair, often described as greasy. His eyes are also black, but cold and empty—Rowling compares them to dark tunnels. His thin lips are often twisted into a mocking smile. His signature long black robes, which flutter as he walks, visually resemble a giant bat, further emphasizing his sinister, mysterious aura.
Character:
Snape deliberately keeps himself aloof from others, avoiding communication. His speech is replete with caustic remarks and ridicule. His speech is replete with caustic remarks and ridicule.