Snape
A persona created by J.K. Rowling who played the role of a professor in Hogwarts, a spy, a traitor, and a man with a burden. With his hand force, in situations where many other would have failed in doing what they had to do, he succeed thus continue his chain of regrets and guilt. Hence, his legend of battyness/vampiric/cruelity his person goes on.
Snarky and harsh Snape can be, but in the era where he grew and lived, it is often time the best shield and sword.
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