After an award-winning debut season, HBO's The Last of Us has begun shooting the follow-up. Joel and Ellie's arduous journey throughout the first season closely mirrored events in Naughty Dog's The Last of Us game, so many fans are assuming the second season will follow the plot of the sequel equally closely. Whether this is a good or bad thing will probably differ depending on who is asked, but one thing is for sure, the character of Abby will likely have a crucial part to play. Kaitlyn Dever has been cast as the controversial yin to Ellie's yang, and this may hold some clues about Abby's inclusion in any potential third game in the franchise.