Quaithe is a shadowbinder from Asshai that Daenerys and Jorah Mormont encountered a couple of times in season two. Quaithe’s mask and shadowbinding abilities make her one of the more mysterious and interesting characters that we know almost nothing about. Fans speculate that she may even have greyscale on her face or that, because of her shadowbinding and homeland in Asshai, she’s connected to the Red priests and priestesses, like Melisandre and Thoros. She gives a prophecy to Daenerys that hasn’t yet played itself out, so we may not have seen the last of her yet. Underneath the mask is actress Lara Pradelska. Outside of Game of Thrones, Pradelska has been in The Habit of Beauty and Love in the Age of Fear. Since her character wore a mask, there’s no guarantee that if Quaithe does come back on the show that it’ll be Pradelski playing the part.