This is the Night King as portrayed in the Game of Thrones TV show, with his blue blue eyes and head spikes. He might have extra titles and names eventually, but as we know very little about him I have stuck to just the one name for now.
This is a reasonably simple pattern with a couple of french knots and one blended colour.
I have designed this pattern for use on evenweave, but aida would be fine. Use two strands throughout. I would suggest a darker cream colour fabric, or his little head spikes won't show.
I have a series of other related patterns - Jon, Dany and Cersei - all wearing the clothes as portrayed in Game of Thrones series 7 trailers, so please do check them out!