Instruct: Given a question, retrieve relevant passages that can help answer the question.
Query: Who is Dexter's sister?
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.
When Sal Price, a true crime writer who has written a book about Wayne Randall, wants to write a sequel about Hannah, she agrees to an interview. She admits to stabbing the woman at the hotel and then poisons Price, who later collapses and dies in Dexter's apartment. Furious over Price's death, and knowing that Hannah had confessed to him, Dexter's adoptive sister Debra calls Hannah in for questioning. Debra has very little proof against Hannah and instead baits her with information about a miscarriage. Dexter later confronts Hannah at her home, telling her that Price's death was needless. Hannah is touched to learn that Dexter deleted Price's files. She and Dexter later sleep together.
Arthur takes Dexter on a weekend trip to Tampa, taking him to the house in which he grew up. This is where he, at age ten, saw his older sister die after he inadvertently surprised her in the bathroom; she fell through the glass shower door and severed her femoral artery, killing her almost immediately. Arthur's trauma is analogous to the event that transformed Dexter and his brother into killers. Dexter later stops Arthur from trying to commit suicide. Dexter discovers that the Trinity series represents the deaths of Arthur's sister, mother and father, and that Arthur has likely been using the Four Walls One Heart program to cover his tracks. Dexter discovers that Arthur's home life is not as pleasant as it appeared, as Arthur abuses his son and locks his daughter in her bedroom, and when things get violent at Thanksgiving dinner, Dexter is forced to subdue Arthur to prevent him from hurting his family. Now assured of Arthur's guilt, Dexter begins to make plans to kill him.
Dexter's Laboratory is an American comic science fiction animated television series created by Genndy Tartakovsky for Cartoon Network. It follows Dexter, a boy-genius and inventor with a hidden laboratory in his room, which he keeps secret from his parents. He is in a constant battle with his older sister Dee Dee, who always finds a way to get inside Dexter's lab and foil his experiments. Dexter engages in a bitter rivalry with a fellow boy-genius named Mandark, who is Dexter's neighbor and classmate. Prominently featured in the series' first two seasons are the superhero-based secondary characters Monkey, Dexter's pet lab-monkey/superhero, and The Justice Friends, a trio of superheroes who share an apartment.
In the season finale, Travis, believing Dexter to be dead, prepares for his final ascension into Heaven by completing the last of his tableaus during a solar eclipse. Hiding in Dexter's empty apartment, Travis learns of Harrison, and as the final sacrifice requires the death of an innocent, Travis kidnaps Harrison at his Catholic school's Sunday pageant and attempts to kill him atop the Miami Transcorp Building. In the midst of his ritual, Travis is halted by the reappearance of Dexter who proceeds to bargain his life for Harrison's. As Travis believes Dexter to be the embodiment of The Beast and values his death above all others, he agrees to release Harrison but not before demanding that Dexter inject himself with some of his tranquilizers to render himself unconscious. Unbeknownst to Travis, Dexter, having anticipated his demands, plays possum and manages to overpower DDK, knocking him out during their ensuing struggle. After dropping Harrison back home, Dexter brings Travis back to the abandoned church, and after a heated debate concerning the existence of God, Travis screams that it is not God's Will that he is to die by Dexter's hand, with Dexter concluding that things are exactly the way they are supposed to be. Dexter then stabs DDK in full view of his sister Debra, who had unknowing walked into the church at the exact moment Dexter murdered Travis.
As Mitchell plans a trip to Tampa to build a house, Dexter concocts a plan to go to a meteorological convention to establish an alibi so he has a reason to be in Tampa as well. Mitchell reluctantly allows Dexter to tag along when Dexter claims he's done something terrible that only Mitchell can help him recover from. Dexter, hoping to redeem his murder of an innocent man, plans to murder the decidedly guilty Mitchell along the way. During their road trip, however, Mitchell pushes Dexter to admit his terrible deed, and Dexter claims to have killed someone in a hunting accident. This admission greatly affects Mitchell, who sees it as a sign of kinship. He takes Dexter to his old home and tells him that when he was 10, he startled his sister while spying on her in the shower; she fell and broke the glass door, slicing her femoral artery and bleeding to death. His mother later committed suicide by leaping off a building, leaving him in the care of his abusive father; Dexter conjectures that Mitchell bludgeoned his father to death, accounting for the third victim.
Dexter's current band, The Dex Romweber Duo, began as Dexter and drummer Crash LaResh, who performed with Dexter from 1995 to 2007. The original Duo toured extensively and recorded several 7 inch releases and recorded two full length albums ("Chased By Martians" and "Blues That Defy My Soul"), but these were credited as solo Dex Romweber releases. Crash LaResh left the band in 2007 and was replaced by Dexter's sister, Sara Romweber. In 2009, the pair released their debut album, "Ruins of Berlin", on Bloodshot Records. The album featured guest appearances from Exene Cervenka, Cat Power, Neko Case, and longtime friend Rick Miller of Southern Culture on the Skids. The band toured the U.S. twice in support of the record, playing support for The Detroit Cobras on the second tour.
Dexter is contacted by his foster sister Debra (Jennifer Carpenter), a vice officer in the Miami Metro Police Department. Dexter, a blood spatter analyst for the department, assists Debra in investigating an apparent serial killer targeting prostitutes. Dexter examines the latest victim and is shocked to find no trace of blood on the dismembered corpse. At the police station, Dexter discusses another murder case being handled by James Doakes (Erik King), a detective who dislikes him. Later, Dexter watches Jamie Jaworski, a murderer who escaped justice due to a faulty warrant, and breaks into his home to find evidence. Once he confirms that Jaworski is guilty, Dexter meets with his girlfriend Rita Bennett (Julie Benz), a former victim of domestic abuse victim; Rita has two young children, Astor and Cody. While on a date with Rita, Dexter finds another murder scene with no traces of blood, this time with the victim's head missing. Dexter theorizes that the killer murders his victims in extreme cold, explaining the absence of blood, and might be using a stolen refrigerated truck. Dexter allows Debra to pitch the theory, but their superior officer, Lt. María LaGuerta (Lauren Vélez), dismisses it.
When Dexter, Rita, Debra (Dexter's adopted sister) and "Rudy" came to sort out Joe's house, Dexter took blood samples of himself and Joe and sent them to Vince Masuka to perform a DNA test, which came back as a match. Dexter suspected that Joe's apparent heart attack was actually murder. However, the body was cremated before Dexter could obtain proof, and thus he never found out what "Rudy" had done. Rudy and Dexter stole Joe's ashes and scattered them at the entrance of Joe's favorite bowling alley.
In season 6, he reappears in the episode "Nebraska" as the sole survivor of his family who has been murdered by who was reported to be the Trinity Killer. While Dexter suspects that Jonah was the perpetrator, with evidence supporting, Jonah's guilt emerges in a confrontation which shows that he killed his mother for instigating his sister's suicide. No longer truly fitting the Code of Harry, Dexter tells him to forgive himself and returns to Miami.Rebecca Mitchell is the daughter of Arthur and Sally. Though she is a 15-year-old teenager her room resembles that of a young child. After running away once Arthur now has locks on the outside of the door and on the windows. Arthur sometimes calls her "Vera", the name of his deceased sister. When Dexter asks her about this and tries to console her, she asks him to take her away, saying she would do "anything", implying she will give him sexual favors to do so (which Dexter flatly refuses). Both Becca and her mother believe he will take Becca up on her offer, however, the latter hopes that Dexter will not allow Arthur to find out. She is last seen in tears being taken out of her home by the police when they uncover that Arthur is Trinity.
The Dexter School was an independent school for boys in Brookline, Massachusetts, United States. The school was founded in 1926. The school motto was "Our Best Today, Better Tomorrow." In 2013 the Dexter School merged with the sister school Southfield School to form Dexter Southfield with which it had shared its campus since 1992.
Deborah Morgan: Dexter's adoptive sister and a police detective with the homicide department of Miami Police Department. Deborah has recently learned of Dexter's "hobby", and feels conflicted about keeping it a secret. Further complicating her feelings is the fact that Dexter saved her boyfriend, Kyle Chutsky, from a particularly brutal serial killer in "Dearly Devoted Dexter
The killer begins sending messages to Dexter, who finds the crimes fascinating. Dexter is torn between helping Deborah and allowing the killer to continue his spree. Meanwhile due to his strange dreams Dexter wants to kill somebody so he follows a man whom he suspects of raping and killing five teenage girls and kills that man after confirming that the man did those crimes. The killer kidnaps Deborah and brings Dexter to the scene, revealing that his sister is being held in the same shipping container Dexter's mother Laura was held in. The killer is Dexter's biological brother, Brian, who was separated from Dexter after their mother's murder at the hands of a drug dealer. As Deborah's spiteful colleague, Migdia LaGuerta, arrives on the scene, Brian is disappointed that Dexter refuses to kill Deborah. Dexter allows Brian to kill LaGuerta and helps him get away out of loyalty to his brother. In the epilogue Dexter stands at LaGuerta's funeral and feels sad but cannot get himself to cry.
Dexter was born in Stamford, Lincolnshire, to Alfred and Dorothy Dexter. He had an elder brother, John, a fellow classicist, who taught Classics at The King's School, Peterborough, and a sister, Avril. Alfred ran a small garage and taxi company from premises in Scotgate, Stamford. Dexter was educated at St. John's Infants School, Bluecoat Junior School, from which he gained a scholarship to Stamford School, a boys' public school, where one of his contemporaries was the England international cricket captain and England international rugby player M. J. K. Smith.
Dexter's sister Dee Dee goes into Dexter's clone machine and create dozens of copies of herself. Dexter has to catch all of the clones and fix all of the machines that they broke. While Dexter tries to catch all of the clones, he has to fight monsters and robots. There are 70 levels and 8 areas.
On a visit to his sister, Dexter and Debra both feel as if they have been drugged; just before he passes out, Dexter sees Hannah standing over him. When he later regains consciousness, Dexter begins investigating Hannah, and finds that she has changed her name and married Miles Foster (Julian Sands), a wealthy businessman. Dexter goes to see Hannah, who says that she had wanted him to kill Foster, but changed her mind after realizing she is still in love with Dexter. Foster warns him to stay away from Hannah, and has him beaten up. Dexter goes to Foster's boat to protect Hannah, but finds that she has already killed him. The two of them dispose of the body, and promise to watch out for each other. The two end up having sex and rekindle their relationship.
After the baby, Harrison, is born, Rita and Dexter move into a house together in the suburbs. Rita begins to notice a pattern of lies from Dexter, including deceiving her about the concussion he suffered in the car accident and the ownership of his old apartment. Rita and Dexter then go to a marriage counselor, who allows them to sort out their problems and instigates peace between them. However, their neighbor, Elliot, begins to fall for Rita, kissing her and pointing out that Dexter is never home. Though she initially kisses him back, she quickly ends it before something begins. In the Season 4 finale, Rita is murdered by the Trinity Killer, leaving her son Harrison sitting in a pool of her blood.Debra Morgan (known as Deborah Morgan in the book) is the younger foster sister of Dexter and biological child of Harry Morgan. Debra believed that she truly knew her father, but is unaware of the secrets he kept, especially concerning Dexter (whom she sees as a true brother). Inspired by their father's legendary police career, Debra joined the police and desperately yearned to become a homicide detective. Initially assigned to Vice, she was transferred to Homicide at the start of the first season. Being new to the job and very insecure, she largely relied on Dexter's expertise on murderers to solve difficult cases. Debra met Rudy Cooper, who unknown to her is the Ice Truck Killer using her to get close to Dexter. She falls in love with him, but is later kidnapped by him in order to be able 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. In the show, she is unconscious, but in "Darkly Dreaming Dexter", she is 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.
By the sixth season, Harrison has grown old enough to enter preschool by the premiere. Now being babysat by Batista's sister Jamie, he does not seem to have endured any permanent psychological impact from his mother's death. He is often seen playing or being read to by Dexter, who calls him a "light" to his "darkness". Harrison undergoes an appendectomy in the fourth episode, causing Dexter to have a crisis of faith.
Dexter invents the Rude Removal System, a machine to remove the rudeness from his sister Dee Dee. However, Dee Dee thinks Dexter is the one who is rude. They start fighting and both wind up in the machine. Inadvertently, the Rude Removal System is activated, splitting the pair into well-behaved and rude halves, with the well behaved duplicates speaking with British accents, and the rude duplicates speaking with New York City accents. The rude pair use profanity and harbor destructive tendencies. They proceed to insult their mother and destroy the house and Dexter's lab. Dexter and Dee Dee trick their rude halves back into the Rude Removal System and reverse the process, combining the rude and polite halves and resolving the problem. The segment ends with Dexter and Dee Dee's mother holding a bar of soap, poised to wash the filthy words from their mouths.
Dexter learns that the Trinity Killer's wife and daughter have been found dead in Nebraska, which Jonah Mitchell reports was the work of his father, Arthur Mitchell. Dexter, the only person who knows the Trinity Killer is dead, suspects that Jonah is following in his father's footsteps and goes to Nebraska to kill Jonah, encouraged by a vision of his brother, Brian Moser, the Ice Truck Killer. However, after confronting Jonah, Dexter learns that his sister committed suicide and Jonah killed his mother in a fit of rage, and wants to die out of guilt. Dexter decides to forgive Jonah and leaves him alive to deal with his demons. 
The novel, set in Melbourne, concerns a couple, Athena and Dexter, who lead a self-sufficient life with their two sons, one of whom is severely disabled. Their apparently "comfortable rut is disrupted by the arrival of Elizabeth, a tough nut from Dexter's past." Elizabeth brings with her her sister Vicki, Elizabeth's sometime lover Philip, and Philip's prepubescent daughter, Poppy. Through them, Athena and Dexter are drawn into a world whose ideas and values test the foundations of their relationship.
The next day, Dexter Scott King's lawyers contended that Bernice was legally compelled to turn the letters over to Dexter, but ignored the order. Dexter's attorney Wood said "Regardless of what your last name is, if you have willfully withheld then you must suffer the consequences." Wood noted that Bernice denied the existence of the safety deposit box several times while under oath, which she said she found after the death of her sister Yolanda, who once owned it.
Dexter succeeds in managing his double life until he investigates the "Tamiami Slasher", who has murdered three prostitutes. Dexter's adoptive sister, Deborah, who is also on the force and wants to be promoted to Homicide — and knowing that her brother has eerie "hunches" — asks him for help in solving the case. Dexter eventually decides to help Deborah due to his moral code, but still feels a compelling pull to the killer due to similar desires. After a lucid dream, Dexter drives around Miami and spots a refrigerated truck. When he follows the truck, the killer throws a severed head at his car. 
Series 3
Dexter turns up at The Dumping Ground looking for his sister, however his sister, Sasha (Annabelle Davis) tells him he has to go and she gets him out of The Dumping Ground. Sasha realises Dexter took her room key, so she goes home for it and Dexter needs Sasha's help to get nappies. Sasha ends up going shopping with May-Li (Stacy Liu) and she catches Dexter shoplifting nappies and Dexter tells her he couldn't find any money. After catching Dexter trying to shoplift, Sasha goes home and Murphy (Thomas and Oliver Waldram) is all alone. Dexter turns up unexpectedly, asking for Sasha. Dexter later throws rubbish over the health and safety inspector's (Shameem Ahmed) car in order to be taken into care, but his family are given the support of Social Services.
Leah Patterson-Baker (Ada Nicodemou) asks Dexter to talk to her son VJ Patterson (Felix Dean) who is starting secondary school, about attending Summer Bay High. Dexter begins filming people with a video camera and is caught by Casey Braxton (Lincoln Younes) who is a member of a surfing gang named The River Boys. Dexter is kidnapped by two of the gang's members, who leave him in the forest. Dexter later returns home. Sometime afterwards Dexter and his group of friends go on a camping trip. Dexter is interested romantically in April but she is already dating Dexter's friend Xavier Austin (David Jones Roberts). Dexter takes Kate Hanlon (Mikayla Southgate) on the trip to make April jealous. April later begins a relationship with Dexter Behind Xavier's back. Xavier finds out about Dexter's relationship with April when he sees them kissing. Xavier is furious and punches Dexter in the nose. The two later become friends again. Dexter finds out that he has a sister, Sasha Bezmel (Demi Harman). Shortly afterwards Dexter sees naked pictures of Sasha around school and is furious.Dexter and April plan to sleep with each other after the upcoming year 12 formal. Dexter attends the year 12 formal. Dallas Phillips (Emma Griffin) kisses Dexter just as April enters. April later ends their relationship. Dexter becomes a nurse at Summer Bay Hospital. His first patient is Dallas's son William (Daniel Place). Dexter finds out that Dallas is living in her car and gets her a job at the Gelato Bar. Dexter is jealous when April begins to date Heath Braxton (Dan Ewing). Dexter and the rest of the Walker family discover that Sasha has been assaulted repeatedly by her boyfriend Stu Henderson (Brenton Thwaites). Dexter and Xavier look for Stu with the intention of confronting him but he has disappeared. Stu is later found dead.