You know nothing jon snow is a quote from ygritte one of the free people that live north of the wall or the wildlings as the nights watch refer to them in the hbo adaptation of george r r martins novels ygritte is played by rose leslie and jon snow by kit harington this is an official game of thrones productltbr gtltbr gtt shirt design reads you know nothing jon snow ygritte game of thronesltbr gtltbr gtour crew neck short sleeved mens t shirts are 100 premiu