Oct. 01, 2006
Returning Series
60 min.
Showtime TV Network

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Dexter is a forensic blood spatter expert for the Miami Metro Police Department. Based on a code given to him by his foster father, Harry, he survives ethically as a serial killer. He utilizes his expertise, often withholding evidence from the police so he can solve murders and kill the killers either before they kill again, or before they are caught by the police.

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Debra Morgan Dexter
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Debra Morgan

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  Played by:
Jennifer CarpenterJennifer Carpenter
Jennifer Leann Carpenter (born December 7, 1979) is an American actress, known for her roles as Emily ...

Character Bio

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Debra is the younger foster-sister of Dexter and biological child of Harry Morgan. Debra believes she truly knew her father, but is in reality completely unaware of the secrets he kept—especially concerning Dexter (who she sees as a true brother). Inspired by their fathers' legendary police career; Debra joined the police and desperately yearned to become a Homicide Detective. Initially assigned to Vice, she was desperate to be transferred to Homicide, a goal that was accomplished in Season 1. Despite being smart, she is unsure of herself, so instead relies upon Dexter's seemingly limitless expertise on murderers to solve difficult cases. Debra meets Rudy Cooper (real name Brian Moser, see below), who unknown to her is the Ice Truck Killer using her to get close to Dexter. She falls in love with him, but she is later kidnapped by the Ice Truck Killer in order for him to reveal himself to Dexter. She is bound to a table in the same manner that Dexter kills his victims, while Dexter and Brian discuss her fate. On the show, she is unconscious; however, in Darkly Dreaming Dexter, she is wide awake, and finds out that her brother is a killer. Debra is severely affected by Rudy's betrayal; she moves in with Dexter for fear of being alone.

Throughout Season 2, Debra is a key member of the Police Task Force that is trying to find the Bay Harbor Butcher, who the audience knows is her brother. She falls for Frank Lundy, the FBI agent in charge of the case, all the while improving her ability on the job. By the end of Season 2, Debra is recovered from the trauma of the Ice Truck Killer, confident as an officer, and she is determined to get her detective shield.

As Season 3 begins, Debra has had her hair cut to shoulder length, has "sworn off men, liquor and smokes" and is even more determined to get her silver detective shield. She is working with a new partner, Detective Quinn, but has been approached by an Internal Affairs officer who tells her that her partner is being investigated as a dirty cop; so far she has refused to assist IA. She was originally part of the team investigating the murder of Miguel Prado's brother Oscar, but because of her lack of tact and people skills she has been removed from the case by the newly-promoted Detective Sergeant Batista; however, the case she has been assigned to (the murder of a young woman) was eventually found to have been the connected Skinner case, which she solved with the help of Anton, a C.I. whom she entered a relationship with after saving his life from the Skinner.

She is known to have a very foul mouth, and there is hardly a sentence that she speaks in which she does not swear. This has nearly gotten her into trouble on several occasions as she often speaks profanely to her superiors, only to realize afterwards and apologize. It finally got her into trouble in the 3rd season, as a poorly-timed public comment caused her to be kicked off the Freebo case. She is also known for being easily angered and frustrated by suspects (even more evident when something happens to someone close to her). Despite her foul mouth and anger issues, it is evident that Debra really loves her brother. Though she is frustrated at his inability to open up to her, she has defended him on more than one occasion. For example, she threatened Quinn when he called Dexter a "dweeb."

A conversation between her and Dexter leads to her finding out her father slept with one of his confidential informants. She investigates the files on Harry's informants and interviews them, hoping to find the one Harry slept with. One of the files is shown to be Laura Moser. This is put on hold by the return of Frank Lundy to Miami to hunt the Trinity Killer, and Debra once again becomes involved with Lundy. Soon, both she and Lundy are shot by an unknown assailant suspected to be the Vacation Killers. Lundy dies, and she eventually figures out the Trinity Killer is the shooter. As a result, Debra opens an investigation to the Trinity Killer. However, it is later revealed that Trinity could not have been the shooter, as her wounds from the bullet where in a straight line meaning someone of Masuka's height had to be the shooter. During a Thanksgiving dinner Debra remembers a conversation she had with Christine Hill and realizes she has knowledge of the shooting that no one outside the police department knew about. This leads Debra to believe that she was the shooter. This is backed up later when it is revealed that Hill is the daughter of Trinity. Hill later confesses to Debra that she was the shooter, moments before she shoots herself in the head.

Episode Screenshots

05x05 - First Blood
Season 5, Episode 05
08x04 - Scar Tissue
Season 8, Episode 04
01x03 - The Popping Cherry
Season 1, Episode 03
07x11 - Do You See What I See?
Season 7, Episode 11
[More Episodes]

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