 During the opening credits sequence for all the Season 9 episodes,  there is a confidential list that flashes on the screen that has a  list of names with some of the names blacked out. This list is  different in the opening sequence of every episode in Season 9. In  this episode, one of the names is Exar Kun. In the expanded Star  Wars universe, Exar Kun is one of the first Sith Lords.