The Crow's Eye

I couldn't really care less about the Greyjoys for three books. Theon's arc was fine, and Asha was fine, and Aeron was interesting but not very well fleshed out. Then the fourth book came along and introduced two of the Greyjoy brothers, in addition to developing Aeron into a bigger character. There's something weird and crazy about the Greyjoys (and everyone who inhabits the Iron Islands and worships the Drowned God), and it seems like it's just getting crazier. Maybe it's the Lovecraftian themes, but I'm so down.

Euron Crow's Eye the still the most mysterious of the brothers. He's just spent however many years as a pirate and a reaver, sailing the haunted seas of old Valyria on his red ship Silence with his mute crew of mongrels and monsters.