Game of Thrones season 6 saw the return (and, in many cases, subsequent demise) of multiple characters who’d been missing for ages: Osha and Rickon. Edmure and the Blackfish. Beric Dondarrion and Thoros of Myr. Best of all: The Hound. Welcome as those comebacks were, there remain notable faces from earlier seasons of the show who appear to have disappeared without trace or, more importantly, a storyline reason for doing so. Ahead are nine such characters who could still have significant roles to play in Arya’s ongoing quest for vengeance, Cersei’s defence of the Iron Throne, and the inevitable human vs white walker face-off.