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
As children, both brothers witnessed the chainsaw murder of their mother, Laura, and afterward were left for two days with her body in a shipping container until the police found them, a memory that lay buried in Dexter's subconscious for years until a therapist unknowingly reawakened the memory.