The Night King is a mysterious and legendary character who appears in both Game of Thrones and A Song of Ice and Fire. Game of Thrones, the HBO adaptation of George R.R. Martin’s A Song of Ice and Fire fantasy novel series, depicts the rise and fall and rise again of people, houses, and kingdoms in the land of Westeros. Dragons, prophesies, and magic all combine with a realistic look at medieval court politics for one of TV's most popular shows. Over eight seasons, five novels, and numerous spinoffs, supplements, and prequels including House of the Dragon, the lore of Martin’s universe is revealed.