Along the way, in Game of Thrones season 8, a lot of your favourite characters will no doubt die due to their participation in the conflict. And thankfully, there's no one to spoil any of it for anyone, since none of the events in Game of Thrones season 8 are based on the books, with the show having left George R.R. Martin's words behind a few Game of Thrones' final season will screen on HBO beginning Sunday, April 14. In advance of season 8, HBO has released several cast photos that tell us a little about what's to come in the final SlSS.