That sneaky rascal Alan Rickman, that's who.
The story goes that before Harry Potter & The Deathly Hallows was even released, author J.K Rowling pulled Alan aside to tell him how it all would end for Severus Snape. For quite some time, he was the only other person other than Rowling that understood where his character would end up and as series producer David Heyman, it came in handy when making some of the earlier films.
"It was quite amusing, too, because there were times when a director would tell Alan what to do in a scene and he would say something like, 'No I can't do that - I know what is going to happen and you don't' He had a real understanding of the character and now looking back, you can see there was always more going on there — a look, an expression, a sentiment — that hint at what is to come … the shadow that he casts in these films is a huge one and the emotion he conveys is immeasurable."
We hear that!
Look, we know there have been a lot of good films this year, but if someone ever needed an Oscar nod for a role, it would be Alan Rickman for this one. Ten years he grew that character from someone loathsome to someone heartwarming. You can't just ignore dedication like that!
Here's hoping for you Alan.