>>213705573
>What the fuck was the tv show doing
They wanted a big bad for the audience.

We don't know much about the Others, they look more like ice elves mixed with fae in the books. And they have some sort of civilization, their own language and can laugh.

Undead Catelyn is going around hanging Freys to avenge Robb and last we heard she had Brienne and was getting her hands on Jaime