That Showtime has actually kept its word and commanded Dexter's eighth season to be its last—much to its chagrin, as the series continues garnering larger ratings than ever before, despite some lackluster seasons—gives the looming final episodes a great jolt of energy and suspense as June 30th nears. The show's promo has been consistently drawing parallels between Dexter Morgan and sister Debra, critiquing their relationship with each other as well as the damage that Dexter's biggest revelation has had on Deb, now that it has caused her to take a life (not to mention, of course, the fact that she is in love with him). Watch Jennifer Carpenter, Michael C. Hall, and the Dexter cast and crew explore the show's final season and the astounding effects it will have on the show's two leads: