Though he's comparatively unknown, the casting of Danish actor Pilou Asbaek looks absolutely inspired on the back of this first glimpse of him. He looks like he's legitimately related to Alfie Allen, so having him play his uncle is very clever. You should put money on Euron becoming a quick fan favourite: he's an infamous pirate - "cunning, ruthless, with a touch of madness according to the casting notes, and he's exactly the kind of rough and rugged character who fans tend to take to their hearts easily. Plus it looks like he's got some stealthy plans in the offing already...