It was the cameo that rose to kill-it-with-fire levels of unpopular: Ed Sheeran's brief turn as "Lannister soldier" in "Dragonstone," Episode 1 of this, the seventh season of Game of Thrones.

Cersei of the House Lannister, First of Her Name, Queen of the Andals and the First Men and Protector of the Seven Kingdoms is arguably one of the most brilliantly evil characters on HBO's "Game ...