So, Season 4 in Indfifference, episode 4 is supposed to be casting Jack and Erin. There have also been rumours of Chase and Kelly returning. I think Jack and Erin are codenames for Chase and Kelly. Think about it, they have codenames all the time, for example: Roy Stark,  Manuel, Harold, Flame Lilly and Stoney. What do you guys think? Please, no douchebaggery.