Game of Thrones isn't exactly short of villains and the whole of Westerous is normally under threat from somebody or another.
But the ultimate baddie came in the form of the Night King - leader of the army of the dead and White Walkers who burst through The Wall and their eyes set on the living.
So let's focus on what the terrifying character actually looks like under all that make up and prosthetics.
Two actors have played the role over the eight seasons.
In seasons four and five, including the scenes where the first White Walker was created, the role belonged to Welsh actor Richard Brake.
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In season six actor and stuntman Vladamir Furdik took over the role and has played the character ever since.
He was in season five as one of the other White Walkers, and he was actually the one who killed Jon Snow.
Speaking to Digital Spy he said: "When we did season five, I was the White Walker who fought Jon Snow - the first time Jon Snow killed a White Walker, that was me.
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"After that, David and Dan asked if I'd play the Night King for seasons six through eight; I never asked why. Maybe they were happy with what I did in season five."
Vladamir has also appeared in James Bond's Skyfall, Thor: The Dark World, Robin Hood and Hercules.
Many fans were very surprised to see what he looks like in real life, and some quickly developed a bit of a crush.
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Vladimir admitted that filming the his final scenes were "extremely difficult" and said it was very emotional.
He told Hollywood Reporter: "We are very good friends. We know each other. It wasn't easy for me to [pretend to] hurt her.
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"When I grabbed her under the jaw, it wasn't easy [on a practical level]. If you make a bad move if you don't grab her well she could have an injury. So I was under pressure and she was under pressure. It was not an easy day."
There are still LOTS of theories about the Night King, and many believe he can't be good for good as it was all just a bit too easy.
