Jennifer Carpenter
Jennifer Leann Carpenter (born December 7, 1979) is an American actress. She is known for playing Debra Morgan, the adoptive sister of the title character of the Showtime series "Dexter", for which she earned a Saturn Award in 2009, and also for playing Rebecca Harris in the CBS television series "Limitless".
List of Dexter characters
However, these visions return after he avenges the murder of Brother Sam, becoming a darker advisor parallel to his father. After an escapade in Nebraska in which Dexter confronts a seemingly-murderous Jonah Mitchell, Dexter's adherence to the Code of Harry and Jonah's guilt lead to Dexter reaffirming his faith in his father, who returns at the end of the episode.