"Acker’s portrayal of Root endeared her to fans making it no surprise that she won the title of Outstanding Actress of May 2016 for her final outing as Root in the 100th episode, entitled The Day the World Went Away."
“Nobody ever told us how a TV show is supposed to work,” Nolan jokes, “so we just kind of went hell bent for leather with this thing, and made a mess, and continue to do so.”
"Person of Interest" has already become very popular in a short amount of time. How can they boost their fan base even more? Perhaps having a popular guest star from a different genre in the season finale can bring in a whole new batch of fans.