Blink and you'll miss him, but the so-called Lightning Lord made a cameo way back in Season One, dispatched by Eddard Stark to bring justice to Tywin Lannister's towering mad-dog enforcer Gregor "The Mountain" Clegane. Now he leads the so-called Brotherhood Without Banners, a band of citizen soldiers, in a guerrilla campaign against the marauding armies that have destroyed their lands – and the fight has clearly taken its toll.