This is a list of characters from the Showtime TV series Dexter and the Jeff Lindsay novels, including Darkly Dreaming Dexter (on which the show was based), Dearly Devoted Dexter, Dexter in the Dark, Dexter by Design, and Dexter is Delicious.

Main Characters

Dexter Morgan

Dexter "Dex" Morgan is the titular protagonist and narrator of the series. Dexter is a forensics expert and blood spatter analyst employed by the Miami Metro Police Department, but has a double life as a vigilante serial killer. As young boys, he and his older brother Brian witnessed the murder of their mother, Laura Moser, and were left for two days in a shipping container filled with blood. The incident left them psychologically scarred. Soon afterwards, Dexter was adopted by Harry Morgan, who hoped to help repress his memory of the death of his mother. However, he soon realized that Dexter had an insatiable urge to kill that would begin to intensify. Harry, frustrated with the number of people who avoided justice, decided to train Dexter as a killer who would target and dispatch other murderers.