Snape: INFP (Seems more like ISTJ unless you've watched Snape's diary, where he has masses of Fi and Ne, so he's just a grumpy INFP)
Ti | Fi | Ne | Si | Te | Ni | Fe | Se
Enneagram: 5w4 sx/sp
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."
"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts."