Carpenter played Dexter's sister, Debra Morgan, in the original serial killer drama, though her character was killed off near the end of the eighth and final season.

Does Dexter sleep with Debra?

When that revelation stirred up some jealous feelings, Deb finally confessed to Dexter that she's in love with him. So we now have a brother-sister-serial-killer-cop-other-lady-serial-killer love triangle on our hands. To recap: Dexter was going to kill Hannah, then he decided to have sex with her instead.

Who shot Debra in Dexter?

In Season 8 of Dexter, Debra was shot by serial killer Oliver Saxon, aka The Brain Surgeon, who attacked her after Dexter decided not to kill him when he had the chance, and instead let his sister arrest him.