After the Season 7 finale shocker of lieutenant Debra Morgan ( Jennifer Carpenter ) killing captain LaGuerta ( Lauren Vélez ), fans knew that Dexter and Debra's already fragile sibling relationship would be the basis of the show's final season: with Deb having to choose between her respected position at the police department and the undying love she has for her killer brother. So what better way to end a series about America's favorite serial killer than to have him meet his maker in the eighth and final season? Dexter ( Michael C. Hall ), the blood spatter analyst for Miami Metro Police Department who leads a double life as a serial killer, only kills those who fit his code. This season Dexter finally learns more about his troubled past. He meets the maker of his monster, Charlotte Rampling , a neuropsychiatrist dubbed by Miami Metro as "the psychopath whisperer." With Charlotte Rampling on board the "slice of l...