[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/dexter_4250.jpg]]
[[caption-width-right:300:[[SuspiciouslySpecificDenial Don't worry]], [[BlatantLies it's just ketchup.]]]]

->''"With the solve rate for murders at about twenty percent, UsefulNotes/{{Miami}} is a great place for me. A great place for me to hone my craft. Viva Miami."''

->''[[ArcWords "Tonight's the night.]] And it's going to happen again and again. Has to happen."''

[[MemeticMutation Surprise muthafucka!]] [[DescribeTopicHere Describe Dexter here!]]

''Dexter'' is a crime television show, starring Michael C. Hall as Dexter Morgan, a blood-spatter analyst for the Miami police department. He has a loving tomboy sister who works as a cop in his department, and a host of eccentric coworkers.

[[BreadEggsMilkSquick He is also a serial killer.]]

To be specific, Dexter specializes in [[PayEvilUntoEvil paying evil unto evil]]; he's a [[SerialKillerKiller serial killer of other serial killers]], [[DirtyOldMan child]] [[DirtyOldWoman molesters]], [[RapeIsASpecialKindOfEvil rapists]], and [[AssholeVictim other really bad people.]] So it's all good! [[BlackAndGrayMorality Sort of.]]

Based loosely on the novel ''[[Literature/{{Dexter}} Darkly Dreaming Dexter]]'' by Jeff Lindsay, the first season of ''Dexter'' sees the titular character assisting in homicide investigations, dealing with his girlfriend's issues, assisting his sister in department politics... and cleaning up after the justice system. Adhering to The Code of Harry -- his adopted father, a police officer who saw the makings of a serial killer in him long ago -- Dexter confines his killing urge to those criminals who have gotten away with their crimes, and does it so carefully and cleanly that he is not likely to get caught.

When another serial killer begins [[TalkingThroughTechnique sending special messages]] just for him in the crime scenes -- and in his house -- Dexter is pulled into a cat-and-mouse game that will force him to reexamine his chosen life...

The show premiered on Creator/{{Showtime}} in 2006. The eighth and final season aired in Summer 2013.

Don't [[http://i.imgur.com/63BnS.jpg confuse this]] with ''WesternAnimation/DextersLaboratory''.

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!!This show provides examples of:

[[foldercontrol]]

[[folder:A - B]]
* ABNegative: Dexter's AB negative blood type, referenced in a flashback, leads to Dexter discovering the truth about his biological father.
* AbandonedHospital: Towards the end of the last season, Dexter finds the Brain Surgeon's kill room in one of these.
* AbortedArc:
** Season 5 has the department pursuing the murderous Fuentes brothers. After a stakeout goes awry, Carlos Fuentes is shot and his brother Marco escapes. With a brutal murderer still on the loose, the department proceeds to... completely forget about him.
** In Season 6 Louis is being set up as a possible serial killer antagonist, and not only that but an antagonist who knows about Dexter's secret life, as he mails Dexter the Ice Truck Killer's fake hand. In Season 7 this is abandoned, as Louis is back to being annoyed about his video game before he is [[DroppedABridgeOnHim anticlimactically dispatched]].
* AbusiveParents:
** [[spoiler:Arthur the Trinity Killer was abused by his father, and in turn abuses his family in a number of ways]].
** In season 5, [[spoiler: Dexter finds out that Astor's friend Olivia's stepfather hits her. So he beats the ever-loving crap out of the guy and scares him into leaving]].
** Rita's mother is shown to be emotionally and verbally abusive.
** For all the love and attention he gave, Harry constantly told Dexter that Dexter wasn't normal and never would be, and guided his son's murderous impulses towards (admittedly deserving) humans due to his own frustration with the legal system, revolving Dexter's entire life around being a SerialKillerKiller. He did this instead of, say, [[ThereAreNoTherapists seeking mental help for his son.]] This becomes a point of internal debate for Dexter in the Season 2 episode "The Dark Defender" when [[spoiler: he learns that Harry was also having an affair with his biological mother]]. Naturally, this leads Dexter to begin wondering if Harry wasn't really some sort of ManipulativeBastard who wanted to train and use Dexter for his own personal war on crime.
*** This is averted in the eighth season [[spoiler: when we discover that he actually did consult a psychologist specializing in psychopaths. She believed, due to her own personal history, that institutionalizing Dexter would be wrong, and it was she who came up with the idea of the Code, though Harry was the one who actually formed it.]]
* AdaptationDyeJob: Blonde Book Deb is played by brown-haired JenniferCarpenter.
* AdultFear: [[spoiler: Dexter Morgan]]'s young son is kidnapped by the crazed serial killer [[spoiler: Travis Marshall]] to be killed in a ritualistic murder.
* AesopAmnesia:
** The death of [[spoiler:Rita]] in Season 4 supposedly shows Dexter that he needs to stop being so reckless with his killing, and that he has to choose between caring for his family and satisfying his urges. While his actions in Season 5 can be mostly justified, Season 6 shows Dexter continuing to make reckless decisions and getting way too involved in fighting a serial killer, who ends up targeting his family, just like what happened in Season 4. He faces the threats of death, his secret being revealed, [[spoiler:and his son's murder]], and only avoids them thanks to {{Contrived Coincidence}}s. In a favorable interpretation, it's not clear if he's trying to help and redeem [[spoiler:Travis]] the same way he did with Lumen.
** He also learns almost constantly that Harry was a very flawed human being and he needs to be his own person.
* AffablyEvil: Dexter.
* AirGuitar: Rudy Cooper plays the air guitar when he helps Dexter to clean the house after Dexter's biological father died. He tries to make the cleaning more fun and plays his old records and starts dancing.
* AloneWithThePsycho
* AmericanGothicCouple: Dexter and [[spoiler:Brian]] pose like this, complete with gothic style house in a poster on the back. Dexter had the bloody pitchfork.
* AmicablyDivorced: Batista and [=LaGuerta=].
* AmoralAttorney: [[PlayingWithATrope Played with]] in season three.
* AntiHero: Doakes is a type III and Dexter is Type V.
* AntiVillain: Dexter again. He seems to genuinely care about Debra, Rita, Rita's children, [[spoiler: Harrison, Lumen,]] and a certain few of his coworkers.
* AnyoneCanDie:
** [[spoiler:Sergeant Doakes]] in the final episode of Season 2. They even show his disfigured torso.
** The show killed off [[spoiler:Rita Morgan]] at the end of Season 4 in a ''very'' cruel rendition of this trope.
** [[spoiler:Frank Lundy]]'s death in Season 4 came out of nowhere and surprised a lot of people.
** Think [[spoiler:Brother Sam will be a season-long guest star]]? Think again.
** In an original variation, [[spoiler:Isaak Sirko, a major but not unsympathetic baddie,]] gets killed well before the Season 7 finale.
** [[spoiler:Maria [=LaGuerta=]]] in Season 7.
** [[spoiler:Debra Morgan in the series finale, in spite of seeming hale and hearty earlier on]].
* ApologyGift:
** In season 4, when Rita is annoyed that Dexter doesn't spend time with his family, he buys them all presents. Astor gets a small laptop, Cody some video game, baby Harrison a geeky item of clothes and Rita a home oven for baking bread. Dexter says they are always out of bread, but it only makes Rita angrier — she would have to bake it. She also thinks that presents cannot fix everything that is wrong in their relationship.
** In season 6, Dexter asks the clerk at the donut shop "What's good for an apology?" when he needs to patch things up with his sister. (FYI, the clerk recommended a cruller.)
* ArcWords: "Tonight's the night."
* ArentYouForgettingSomeone: No one in the [[StepfordSmiler Mitchell family]] says they are thankful for [[SerialKiller Arthur]] during Thanksgiving. He doesn't take it well.
* ArsonMurderAndAdmiration: Dexter frequently displays a certain admiration for especially competent criminals, including several of the killers he goes after. The Ice Truck Killer from season one is an example, as well as Trinity, until Dexter discovers that that his normal life is all a front.
* ArtImitatesArt: See AmericanGothicCouple above.
* ArtisticLicensePharmacology: Dexter gets a report back from the lab saying that a bottle of water is "40% alprazolam". An alprazolam tablet has a lower concentration of the drug than this, and at a maximum strength of 2mg per tablet it would take 96,000 of them to produce this level of adulteration in that bottle of water -- which certainly wouldn't taste anything like water afterwards.
* AscendedMeme: The final episode of season seven is titled "Surprise, Motherfucker!" and features flashbacks of Doakes.
* {{Asexual}}: In the first season, Dexter asserts that he doesn't enjoy sex and hates it when his cover relationships graduate to a physical level because they always end immediately afterwards. He considers Rita the perfect girlfriend because she's too traumatized to try to have sex with him. Ultimately the series seems to forget this.
* AshesToCrashes: The main villain in Season 4 keeps the ashes of his dead sister on his mantelpiece when he isn't scattering them next to the bodies of his victims. They're smashed by his long-suffering son in a fight. Additionally: the ashes of Dexter's real father are in a plastic ziplock bag. Dexter disperses them on a patch of grass in front of a bowling alley.
* AssholeVictim: Why the audience tolerates Dexter's hobby.
** Even when Dexter kills a non-killer, the writers make sure the victim is enough of a scumbag that we don't feel too upset over their murder. Examples include Nathan Marten (a child molester), Jonathan Farrow (a physical abuser), and Rankin (a gigantic asshole).
* AtomicFBomb:
** Quinn has a habit of keeping his normal tone, but shouting the word '''"FUCK"''' in the middle of the sentence when he is angry.
** Dexter gives one when [[spoiler: the FBI is asking him about Rita's death]]. He says "Are you suggesting I [[spoiler:killed my wife]]? Are you ''FUCKING SERIOUS!?''"
* AuthenticationByNewspaper: Attempted by Little Chino in season 2.
* AwesomenessByAnalysis:
** Dexter is a blood spatter analyst able to deduce and recreate a crime scene or a relevant incident within seconds.
** Lundy is a [[FamedInStory legendary FBI analyst]] who is not fooled by some of Dexter's tricks and even reverses some of them to deduce the true nature of the suspect: "Law enforcement".
* BackForTheDead: [[spoiler:Lundy in season 4]]. He alerted everyone to [[spoiler:the existence of the Trinity Killer]] and [[spoiler:rekindled his romance with Debra]], ultimately hanging around for [[spoiler:four episodes]] before his untimely demise.
* BadGuysDoTheDirtyWork: In season 2, Sgt. Doakes discovers that Dexter is the Bay Harbor Butcher. Dexter can't bring himself to kill him because he doesn't fit the code, and can't decide whether to frame him or confess. [[spoiler: Lila resolves the dilemma by murdering Doakes herself]].
* BadAss:
** Dexter, who's fought toe-to-toe with various tough customers on several occasions and come out on top.
** Doakes as well. Aside from being the resident ScaryBlackMan, he was former special ops, and is extremely muscular.
* BadassBookworm: Dexter is intelligent, but in the few cases in which he has to get his hands dirty and rough someone up, he can. Late in season 2 he even wins a more or less fair fight with [[spoiler: Doakes]] while handcuffed.
* BaldBlackLeaderGuy: Doakes.
* BattleCouple: Dexter and Lumen in season 5. This is [[LampshadeHanging lampshaded]] by the other characters. Masuka even compares them to BonnieAndClyde. Dexter finds the analogy worrisome.
** Played straight from season 7 onward with Dexter and Hannah.
* BattleTrophy: Dexter takes a blood sample from every killer he's killed. [[spoiler:Until season 7, when he stops after Deb confronts him for it, and destroys them all]].
* BeYourself
* BecomingTheMask: Arguably the most prominent theme. Dexter pretends to be a regular guy who has emotional bonds with the people around him. As the story goes on, he begins to realize that he really does care for the people around him, though the audience sees this way before Dexter realizes it. By season 8, he's become so successful at being normal that it confounds Dr. Vogel, [[spoiler:the one who helped Harry teach Dexter his code]].
* BerserkButton:
** Insulting or threatening to hurt Dexter's loved ones causes him to break his code on several occasions.
** Miguel Prado also has a big one, as lampshaded by Dexter himself at one point.
** Trinity is a pretty cool customer, unless you [[spoiler: touch his sister's urn or accuse him of being a paedophile]].
** Quinn doesn't take very kindly to being called a dirty cop. [[spoiler:Even though he is one]].
* BestWoman: Deb is Dexter's "best man" at his wedding.
* BetterThanSex: This exchange from of one of the ''Early Cut'' shorts:
-->'''[[BlackWidow Cindy Landon]]''': "P-please! Please! I-I-I'll fuck you if you let me go!"\\
'''Dexter''': *Wielding a chainsaw* "But this is so much more fun!"
* BettyAndVeronica: Lila (Veronica) and Rita (Betty).
* BigBad: Each season has at least one.
** Season 1: The Ice Truck Killer [[note]]a.k.a. [[spoiler:Rudy Cooper, a.k.a. Brian Moser]][[/note]].
** Season 2: Lila West and James Doakes (although Doakes is a HeroAntagonist).
** Season 3: Miguel Prado, [[spoiler:with The Skinner (a.k.a. Jorge Orozco) as a BaitAndSwitchBoss]].
** Season 4: The Trinity Killer, a.k.a. Arthur Mitchell.
** Season 5: The Barrel Girl Gang [[note]][[spoiler:with Jordan Chase as the Big Bad and Cole Harmon as TheDragon]][[/note]].
** Season 6: The Doomsday Killers, a.k.a. James Gellar and his [[TheDragon dragon]] Travis Marshall. [[spoiler:Until we learn that Gellar is just a SplitPersonality of Travis]].
** Season 7: Isaak Sirko, [[spoiler:Hannah [=McKay=], and Maria [=LaGuerta=] (although [=LaGuerta=] is a HeroAntagonist)]].
** Season 8: The Brain Surgeon [[note]]a.k.a. [[spoiler:Oliver Saxon, a.k.a. Daniel Vogel]][[/note]].
* BigBraToFill: Book Deb is described as busty; JenniferCarpenter isn't. In fact, in the TV show, she's lampshaded as flat-chested.
* BigScrewedUpFamily:
** The Trinity Killer's home life starts off looking pristine and wholesome, but they're really quite messed up. Aside from the murderer father, there's the StepfordSmiler wife, the [[AbusiveParents abused]] son, the FilleFatale daughter who's frequently locked up in her room (which is decorated for someone much younger)... Not to mention Arthur's history with his own parents and sister. [[spoiler: And ''then'' there's Christine, his daughter from some previous involvement, who's known about his murders since she was five.]]
** Dexter's own family is no better. He [[spoiler: and his brother, the Ice Truck Killer]] were born to a drug-dealing snitch. Both had the misfortune of [[spoiler: seeing mommy get hacked to pieces with a chainsaw]]. Dexter's biological father was a career criminal. [[spoiler: The Ice Truck Killer spent most of his childhood as an orphan, and grew up unhinged]]. Even though Dexter escaped that fate thanks to Harry, Harry molded him into a SerialKillerKiller instead of trying to do something more positive about his budding sociopathy.
** The Prado brothers have their darker sides revealed fairly early on in season three.
* BilingualBonus: Most of the Spanish is un-subtitled.
** The illegal immigrant boat that picks up Dexter when he's floating in the ocean in "This Is the Way the World Ends" is called the ''Milagro''--"miracle".
** In Season 3 Anton writes a song for Deb called "Puta Flaca Mala"--"Bad Skinny Bitch".
** Season 7 has huge Narm potential for Russian speakers, as the "Koshka Brotherhood" translates roughly to "Kitty Brotherhood". Doesn't sound so menacing now, does it?
* BlackAndGrayMorality: Sort of.
* BlackComedy:
** In the fifth season premiere when Dexter tells Astor and Cody of [[spoiler:their mother's murder]] while wearing Mickey Mouse ears. Twisted.
** Let's not forget the first episode.
--> '''Dexter:''' There's something strange and disarming about looking at a homicide scene in the daylight of Miami. It makes the most grotesque killings look staged, like you're in a new and daring section of Disney World: Dahmerland!
** Or season 2:
--> '''Dexter:''' A blind man. Not very sporting, I know. But I'm not one to discriminate based on race, gender or disability.
--> And afterwards:
--> '''Dexter:''' It'll be OK. I followed the code, the stalk was good. I'm just a little rusty since killing my brother. Or maybe I took pity on my victim. I mean sure, he's a heinous killer, but he also bumps into walls.
* BloodFromTheMouth:
** Lila [[spoiler: when Dexter stabs her in the chest in the Season 2 finale]].
** Camilla when dying of cancer.
** Beth Dorsey [[spoiler:after her thwarted attempt at executing Travis Marshall's 'Wormwood' tableau (Season 6)]].
* BloodSplatteredInnocents:
** Dexter's flashbacks.
** Baby Harrison [[spoiler: sitting in Rita's blood in the Season 4 finale]].
* BloodSplatteredWeddingDress: Season 3 finale. Better watch out, Rita.
* BondVillainStupidity: [[spoiler: Jordan Chase got hit by it in season 5 finale]].
* BookEnds: In the season 4 finale, [[spoiler:Dexter finds Rita dead in the bathtub with Harrison bawling on the floor in a pool of her blood]], almost perfectly mirroring [[spoiler:how young Dexter cried in a pool of his mother's blood after she was murdered]].
* BoringButPractical: Dexter's set of kill tools contains some... [[http://i704.photobucket.com/albums/ww43/Beta2G/vlcsnap2040519.png?t=1297684349 interesting]] sharp instruments, but he generally sticks to a plain-ol' big knife.
* BornDetective: Both of Harry's kids become cops, just like Harry himself.
* [[{{Bowdlerise}} Bowdlerize]]: The CBS version of Season 1, aired during the 2007-08 writer's strike, which removed much of the sex, violence and bad language, and replaced it with advertisements.
* TheBusCameBack:
** The Ice Truck Killer, killed off in Season 1, returns as Dexter's ImaginaryFriend five seasons later.
** Two years after the Trinity story arc, Arthur Mitchell's son Jonah pops up in Season 6.
** Sylvia Prado returns briefly near the end of season 8, helping Dexter sell his apartment.
* BrattyTeenageDaughter:
** Astor as of season 4.
** Deb in some flashbacks.
* BreakingTheFourthWall:
** In season 2 Dexter is doing one of his narrations, when Doakes says "You say something, Dexter?"
** At one point in Season 2, Dexter comments on how the voices in his head were gone. A scene later, he starts his internal narration and adds, "The voices are back. Excellent."
** Dexter [[http://www.youtube.com/watch?v=Txw5qosGt4E looks at the camera]].
** In Season 3, while Dexter is killing the neo-Nazi, he mentions that he prefers [[IWorkAlone to work alone]] and then says to no one in particular "...present company excluded." It could be interpreted as a statement to the audience.
** In the Season 6 premiere, when Jamie is first shown in Dexter's apartment, Dexter narrates saying, "It's not what you're thinking."
* BreakInThreat: The Ice Truck Killer sneaks into Dexter's apartment several times, and leaves calling cards each time (dismembered dolls, smiley faces). However, Dexter's reaction to the intrusion subverts the trope: he realizes that it isn't a threat, but rather an invitation to "play."
* BreakTheCutie: Deb, so much Deb. It's a tribute to her strength of will that she *hasn't* completely broken down after the trail of dead and fucked up people that have surrounded her for the entire run of the show.
* BreatherEpisode: Season 5's "Teenage Wasteland" mostly takes a break from the main story arc to focus on Dexter reconciling with Astor.
* BrokenPedestal:
** Harry after Season 2.
** [[spoiler:Dexter to Debra after the reveal]] in Season 7.
* BunnyEarsLawyer: Lundy is a mild example.
* ButNowIMustGo: Lumen.
* ButtMonkey: Masuka.
[[/folder]]

[[folder:C - D]]
* CainAndAbel: [[spoiler:Dexter and his brother Brian Moser]]. Ironically it's [[spoiler: Abel who kills Cain here]].
* CallBack:
** '''Dexter''': I'm just not used to checking the fridge for notes. ('''VO'''): Just messages from other serial killers. (Referring to the Ice Truck Killer in season 1).
** During his investigation into Dexter, Stan Liddy makes mention to Quinn that Dexter went to Paris at some point, referring, of course, to the Season 2 ending.
** The shot at the end of Season 4, [[spoiler: with baby Harrison sitting in his mother's blood, is a Call Back to the oft-repeated shot from Season 1 of little boy Dexter sitting in his mother's blood in the cargo container.]]
** '''Dexter''': You don't know this about me, but I'm actually kind of a breakfast connoisseur. (Referring to the title sequence)
** In Season 6 Masuka's sexy intern/girlfriend is obsessed with the Ice Truck Killer, and she steals the mannequin hand with painted nails from Season 1.
** In Season 4, after Arthur Mitchell figures out that Kyle Butler is really Dexter, he greets Dexter at Miami Metro with "Hello, Dexter Morgan" (hence the [[TitleDrop episode title]]). In Season 6's "Nebraska", after Dexter tracks down Arthur's son Jonah, Jonah greets Dexter with the exact same line.
** In Season 6, {{Fanboy}} intern Louis Greene shows Dexter his video game which allows players to control various [[spoiler: famous serial killers]], including the local title for Dexter from Season 2, the Bay Harbor Butcher, upon mention of which we hear Dexter ominously think with a tinge of annoyance
-->'''Dexter''': I AM the Bay Harbor Butcher...
** In Season 7 episode "Sunshine And Frosty Swirl", when recounting his crimes, Dexter harks all the way back to the pilot (the murderous choir director). Then in Season 8 episode "Goodnight, Miami" Dexter revisits the spot where he killed the choir director in the pilot.
** In the next-to-last episode, "Monkey in a Box", Miguel Prado's widow Sylvia pops up as the realtor trying to sell Dexter's apartment.
* CallingTheOldManOut:
** Rita with her mother.
** Jonah Mitchell, in quite an epic one as there's quite a lot for his father to answer for.
** Astor to Dexter in the wake of [[spoiler: Rita's death]].
** Dex [[ImagineSpot imagines his dead, adoptive father talking to him]] throughout the series. After learning that [[spoiler: Harry had an affair with his biological mother]], Dex imagined several of these moments in season 2 and 3.
* CaptainObvious: Dexter's voiceover narration often suffers from this in the later seasons.
* CartwrightCurse: [[spoiler: Deb suffers from this]].
* CassandraTruth:
** Dexter tells his therapist he's a serial killer. The therapist thinks he's joking. Of course, the only reason he was at the therapist's was because the therapist was his next victim.
--> '''Dexter''': I'm a serial killer. Oh god, that feels so amazing to say out loud. I'm not joking. I kill people.
** Also, in that same episode: Dexter seeks out one of the therapist's patients to establish whether the shrink has an alibi for the time of his "suicide victim's" death. When the guy asks Dexter what he thinks of Dr. Meridian, Dexter replies: "Nah, I'm a sociopath, there's not much you can do for me". Cue the other guy not only taking this as a joke, but actually trying to hit on Dexter. "Cute AND funny. Let me guess. Taken."
* CharacterDevelopment: Everybody gets some.
** In the beginning of the show, Dexter is somewhat disgusted by sex, believes himself to be totally emotionless, and tries to avoid personal connections at all cost for fear of being discovered as a monster. As seasons go by, he becomes a family man and has several romantic relationships with women.
** Rita, who is fragile and shy, becomes stronger and more assertive as she recovers from the trauma of her marriage with Paul.
* CharacterizationMarchesOn: In the books [=LaGuerta=] is an outright antagonist, described as simultaneously dumb, horny for Dexter, and unreasonably hostile toward Debra. In the show, she is referred to as being dumb in the pilot, but that is dropped soon after and [=LaGuerta=] is portrayed as quite competent. Her attraction for Dexter is implied a couple of times in the first episodes but dropped, and eventually her hatred for Deb is also dropped after the characters have a heart-to-heart. This is probably due to the decision to [[spoiler: keep [=LaGuerta=] around, rather than killing her off as Lindsay did at the end of the first book]].
* ChekhovsGun: The coffin built by Arthur in season 4.
* ChewingTheScenery:
** Miguel, ''especially'' on the rooftop. And it is awesome.
** Dexter himself has a couple of these moments in Season 2, especially during the confrontation with [[spoiler: his mother's killer]] and the opening scene with Doakes in 2x11, "Left Turn Ahead".
* ChewToy:
** Sgt. James Doakes. Early on, he finds [[spoiler: the woman he loves shot to death in her home]], and because her estranged husband was a police officer, he ends up "volunteered" as the bait in a trap to catch the man who ordered her death. In season 2 [[spoiler: he finally discovers Dexter's secret only to be caged up, blown up and posthumously framed for all Dexter's murders, so effectively that [=LaGuerta=] is the only cop who mourns his death.]] ''Somebody'' sure doesn't like Doakes being happy...
** Angel has it pretty bad. First season he's separated, then divorced. Then he gets stabbed, which leads him to thinking his ex-wife would take him back. She doesn't. Then he is used by Lila to get at Dexter, including being framed by her for using Rohypnol. Then he goes to a prostitute, but gets busted as she is an undercover cop. Then he begins a relationship with [=LaGuerta=], which eventually ends in another divorce. Then he loses a promotion to Lieutenant to his junior, Deb. As a result, he has to deal with his partner Quinn, who holds the IdiotBall for much of Season 6.
* {{Chiaroscuro}}: Would you expect a show about a serial killer to be well-lit?
* ChivalrousPervert: For all his ribald jokes and wacky antics, Vince Masuka cares a great deal for the women in his life, and is very shaken by the sight of [[spoiler:Dexter's neighbor putting moves on Rita]] in Season 4. In Season 5, he is especially disgusted when he has to watch the rape [=DVDs=], and is also very sad when examining [[spoiler:Rita's corpse]], stating, "I always wanted to see her naked, but not like this." Season 6 has him taking on several interns, including a very attractive blonde; once he realizes her disrespect for protocol, he immediately gets rid of her. Culminates in season 8, where he discovers he has a daughter; he is very unnerved to find out that she works in a ''topless'' sports bar.
* ChokeHolds: While Dexter prefers to sedate his targets, he's been known to strangle them into unconsciousness. Acceptable, considering what he plans to do with them doesn't really require them to be in the best health anyway. [[spoiler:His brother]] was considerably more fond of the sleeper hold, although his goals were basically the same. The Trinity Killer also uses sleeper holds.
* CleaningUpRomanticLooseEnds: Though Rita never has any serious competition as Dexter's love interest but there are a couple other women who have shown interest in him. Lila is [[spoiler: killed by Dexter after she kills Doakes, allowing Dexter to kill her without breaking the Code]]. Lt. [=LaGuerta=] is a more unusual case. Early in the series she shows a romantic/sexual interest in Dexter. However, this simply fades away after a while.
* ClearMyName: Subverted with [[spoiler: Sgt. Doakes]].
* {{Cliffhanger}}: While previous seasons would end with dangling threads, Season 6 was the first to end with a true Cliffhanger.
* ClingyJealousGirl: Lila, oh so much. She caused a fire just to try and control Dexter. She then tried getting revenge against Dexter just because he left her. She tricks the authorities into thinking Batista raped her due to rough sex and taking a date rape drug, stalked Rita and then tried to murder Dexter, Astor and Cody in the season finale because Dexter chose Rita and the kids over her. She's also [[spoiler: responsible for murdering fan-favorite Doakes all for the sake of winning Dexter's approval. He most certainly does not appreciate it]].
* CloudCuckooLander: Lundy shows some signs due to being a [[BunnyEarsLawyer bunny ears detective]], such as when he's enjoying animal crackers during a homicide interview:
--> '''Lundy''': "Is this a lion or a hippo?" *Eats*. "Tastes like a hippo."
* ClusterFBomb: Deb and Doakes in particular, but there are other offenders.
* ColdBloodedTorture:
** The Skinner ostensibly tortures for information, but Dexter states that that's just a pretense and he does it because he enjoys it.
** The circle of rapist-murderers puts its victims through rape-and-torture sessions so shocking that even Dexter and Masuka, the resident pervert, are horrified by them.
** Ramon Prado tortures some mook for information about his brother's killer by [[CoolAndUnusualPunishment shaking up a bottle of Coke and letting it shoot up the guy's nose]].
* TheCollectorOfTheStrange: Dexter's box of [[CreepySouvenir bloody slides]]. Also, one character's fascination with cryptozoo-taxidermy.
* ConfettiDrop: Done in "Born Free" when Dexter has a rather long ImagineSpot and sees himself as a celebrity appreciated by general public. The celebrity worship and party-like feeling is completed with the Confetti Drop and banners saying stuff like "I'm your number one fan" or "we love Dexter".
* ConspicuousGloves: Dexter sometimes uses rubber gloves when he searches for evidence in his future victims' places, but at times he uses ordinary gloves. Once somebody sees him coming home with the gloves on and points out that Miami is little too hot for wearing them.
* ContinuityNod: In the beginning of Season 6, we see Dexter's old prom date Mindy who we first met in a Season 1 flashback.
* ContrivedCoincidence:
** At the end of the season Deb walks in at exactly the right moment so that Dexter confuses her for Lila and [[spoiler: jumps her from behind, kicking off Lila's final attempt at killing Dexter and the children]].
** The only reason the cops find out the Ice Truck Killer's real name is because Angel is in a hospital room with a patient who got transferred from the psych ward.
** In Season 6, Dexter figures out who Travis is by 1) spotting him in the crowd at a crime scene (ok, forgivable maybe) and then 2) going to a museum, which just happens to be where Travis works, and then being lucky enough to see Travis' face in a film on art restoration shown to museum patrons.
** Louis mailing Dexter the ITK hand means that he somehow knows Dexter's dark secret, right? Apparently not.
* CoolBoat: Dexter's [[PunBasedTitle Slice of Life]] plays a pivotal part in his [[DisposingOfABody waste management]]. [[spoiler:In the series finale, it plays a part in him faking his death]].
* CountryMatters:
** The normally stoic Dexter stabs a serial killer in the chest when he called Rita one.
** The Trinity Killer refers to a passerby, his wife, and his daughter this way.
** Deb calls Yuki, the Internal Affairs officer, one. Nobody likes HR.
** So, so many examples in Season 5 courtesy of the main antagonists.
* CreatorCameo: Jeff Lindsay pops up in Episode 3-10 as a cop.
* CradlingYourKill:
** In Season Two, Dexter injects Lila with a spinal epidural and then carries her to the couch before laying her gently down and stabbing her through the heart. He then closes her eyes.
** In Season Four, Trinity forces his first victim to lie with him in a bathtub, holds her close and says, "Shhhhh, it's already over," before cutting her femoral artery. He continues to hold her as she bleeds out and dies. Made even more horrifying by the fact that he's an extremely specific ritual serial killer and has probably done exactly this to dozens of women over the years, [[spoiler:including Rita]].
** In Season Seven Finale, [[spoiler:Debra]] shoots [[spoiler: Maria [=LaGuerta=]]]. She is horrified by what she did, runs to her to embrace her and cries the whole time.
* CrammingTheCoffin: In season 3, not wanting to divulge the methods of his usual lifestyle, Dexter teaches Miguel Prado to dispose of bodies by burying them past the point of visibility within a to-be-used grave, intending them to be hidden beneath a new coffin.
* CreepySouvenir:
** The blood slides of Dexter's murder victims.
** The Ice Truck Killer stores his victims' blood in the freezer. [[SubvertedTrope Subverted]] when he brings the blood to another crime scene.
** In Season 3, Miguel Prado takes Ellen Wolf's ring.
** In Season 4, Trinity keeps plaques from various places all over the USA on the wall in his living room. They mark houses he built for a charity organization, but also each cycle of his murders. [[spoiler:In addition, a small boy was buried in the concrete foundations of the houses.]] He was sending postcards to his daughter from those places as well.
** In Season 5, Boyd Fowler keeps numbered strands of the Barrel Girls' hair, Alex Tilden takes pieces of their jewelry, and Jordan Chase wears a vial of his first victim's blood around his neck as a pendant. The gang also records themselves torturing and raping the girls, and makes [=DVDs=].
** In Season 6, the Tooth Fairy keeps his victims' teeth in a tin box.
** In Season 6, Louis Greene acquires the prosthetic hand that belonged to the Ice Truck Killer.
** In Season 7, Ray Speltzer took his female victims' earrings to put on display in a mausoleum at the cemetery where he worked.
** In Season 8, the Brain Surgeon excises a certain piece of his victim's brain.
* CrimeOfSelfDefense: Dexter's girlfriend against a rapist that broke into her house.
* CriminalMindGames:
** The Ice Truck Killer leaves clues that only Dexter would recognize and appreciate.
-->'''Dexter''': I suppose I should be upset, even feel violated, but I'm not. No, in fact, I think this is a friendly message, like "Hey, wanna play?". And yes, I want to play. I really, really [[http://www.youtube.com/watch?v=Txw5qosGt4E do.]]
** Dexter himself does the same thing to the Miami Homicide Department in the second season. [[spoiler: It backfires on him badly, though, helping the police to narrow down the list of suspects to people in the Department.]] [[spoiler: [[NiceJobBreakingItHero And that's why, when you write a 'manifesto', you stick to one possible diversionary target instead of, say, 10.]]]]
** [[spoiler:Louis Greene]], who appears to be a wannabe serial killer, mails the Ice Truck Killer's prosthetic hand to Dexter near the end of Season 6.
* CringeComedy: Brian provides some as [[spoiler:a figment of Dexter’s imagination]] in season 6.
-->'''Brian:''' Wouldn't it have been more fun to kill her then fuck her?
* CuteAndPsycho: Zig-zagged with the Trinity Killer. We see his psychotic side first, then get shocked that he has a seemingly wholesome home life, then get shocked again when we see just how dysfunctional his home life ''really'' is.
* DaChief: Matthews, from Season 4 to Season 6. He becomes a regular character by season 8.
* DangerTakesABackseat
* DangerouslyGenreSavvy: Dexter himself. Season 1 final episode. [[spoiler: Dexter realises the Ice Truck Killer will probably come after Debra to make Dexter [[TheUnfettered truly free]], and then they can [[BlatantLies fight]] [[TheyFightCrime crime]]. Dexter lures the Killer into a trap with a dummy of Debra .... [[HoistByHisOwnPetard made of his own prosthetics]]]].
* DatingCatwoman:
** Dexter and Lila. It says something when Dexter is a serial killer and the girl he dates is darker than him.
** Dexter and Hannah [=McKay=].
* DaylightHorror: Many gruesome crime-scenes are shot around the sunny Miami locale.
* DeadAllAlong: [[spoiler:Gellar, the "main" villain of season 6, turns out to have been dead for a long time, and Travis was only hallucinating him while doing all the killings himself]].
* DeadHandShot: The season 2 promotional poster.
* DeadlyBath: The Trinity Killer murders women in their bathtubs. [[spoiler: Eventually he takes revenge on Dexter by killing Rita this way]].
* DeadlyGas: [[spoiler: Travis's attack on the police station]].
* DeathByAdaptation: The Ice Truck Killer, Doakes. [[spoiler:And Rita, who is alive and quite well in the novels]].
* DeceasedFallGuyGambit: Dexter frames [[spoiler: Doakes]] for being the Bay Harbor Butcher. Although unplanned by Dexter, [[spoiler: Doakes is later blown up and posthumously takes the fall for Dexter's crimes]].
* DeadPersonConversation:
** Dexter has many of them, mostly with Harry, but briefly with Brian.
** As of Season 6, [[spoiler:Travis also has these with Gellar, unbeknownst to the audience for much of the season. They stop shortly after it's revealed to the audience that Gellar was Dead All Along]].
** In one episode of Season 6, Deb implies she has them with Harry as well.
* DeathSeeker: At the start of season 8, Deb shows shades of this with her increased drug addiction and self-loathing. Considering what she did at the end of season 7 - [[SadisticChoice by either]] [[spoiler: killing/apprehending Dexter or killing [=LaGuerta=], and choosing the latter]] - it's easy to see why her spirit's [[BrokenBird completely broken]].
* DesignatedLoveInterest: Hannah [=McKay=]. When an entire episode is dedicated to how Dexter just can't help himself around her because they just have such great "chemistry", you know you've got a problem.
* DespairEventHorizon: Deb got hit with this ''twice'' in season 7. The first time was a slow burn despair. [[spoiler: After finding out that Dexter was the Bay Harbor Butcher, she dipped into a slow descent into depression and anti-anxiety medication. Despite trying to help Dexter through his addiction, the burden of keeping the secret to herself has slowly gotten the better of her]]. By the end of season 7, the second despair hit a lot quicker and was far more brutal. [[spoiler: Faced with the SadisticChoice to arrest/kill Dexter, or kill [=LaGuerta=], Deb chooses to save her brother. By the season 8 premiere, it's made clear that Deb's decision to save Dexter has turned her into a [[DeathSeeker reckless and borderline suicidal drug addict]] that can't bear to be around Dexter or Miami P.D. anymore, and resents Dexter for destroying her life]].
* DetectiveMole: More than once, most notably the entire plot of Season 2, when Dexter and the rest of Miami Metro are investigating the Bay Harbor Butcher--who is Dexter.
* DeusExMachina:
** The baby monitor in Season 5, which helps Dexter catch on to Liddy's scheme.
** At the end of Season 2, Dexter has captured Doakes, who now knows Dexter's secret. What to do? Eventually Dexter resolves to turn himself in because killing Doakes doesn't fit The Code. [[spoiler:Lila blunders into Dexter's hideaway and kills Doakes for him]].
** In the Season 6 finale, just when Dexter resigns himself to a death at sea, an illegal immigrant boat comes out of nowhere and rescues him. A very deliberate example, given the season's focus on religion and God. The boat's name? ''Milagro''.
* DevilInPlainSight: Lampshaded memorably in the very first episode:
-->'''Dexter''' ''(VO)'': The only real question I have is why in a building full of cops, all supposedly with a keen insight to the human soul, is Doakes the ''only'' one who gets the creeps from me?
** Later, Quinn. [[spoiler: But it takes Rita's death for him to start to suspect anything]].
* DidNotDieThatWay: Dexter believed Harry to have died of heart disease, but he was revealed to have [[spoiler:[[DrivenToSuicide committed suicide]] after seeing what Dexter was really capable of, and what [[MyGodWhatHaveIDone he had trained him to do]]]].
* DirtyCop: Quinn.
* DirtyHarriet: Deb. She's actually called so at one point in the book.
* DisposingOfABody: Dexter hacks his victims to pieces and then drops 'em at the bottom of the sea. The tides turn this into a major plot point when several remains are discovered and the case against the "Bay Harbor Butcher" ensues.
* DisproportionateRetribution: Louis Greene starts tormenting Dexter because Dexter insulted his game. Dexter initially assumes Louis knows he's a serial killer, and is flabbergasted when he learns that his real reasons are so petty.
* DitchTheBodyguards: After the FBI suspect that [[spoiler:Doakes]] is the Bay Harbor Butcher, Dexter is given a protective detail since they assume the Butcher will come after him. He slips away from them by climbing out the window of his apartment.
* DoesThisRemindYouOfAnything?:
** In the TitleSequence, Dexter's morning routine is [[StabTheSalad shot to be reminiscent of his murders]]. And done very well. People are genuinely disturbed by the TitleSequence, some to the point of being unwilling to watch the introduction, despite the fact that they engage in similar activities frequently.
** This idea is played with a lot in the fifth season with Dexter and Lumen's relationship; it seems to be parodying a tradition 'courtship' in a way: [[spoiler:he gives her the blood slide like anyone else would give flowers or something; he presents her with his knives and invites her to choose her favorite, like any other kind of gift; he gets all tongue-tied when he sees her in her killing clothes, saying she looks "perfect"; he takes her shopping and buys her a knife after she rejects a ring, like a man shopping for the perfect gift; they cuddle as they plan their next murder, like its their next romantic outing. Of course, for them it really kind of ''is'' their next romantic outing. It manages to be very sweet, and more than a little creepy]].
* DontExplainTheJoke: In the episode "Swim Deep":
--> ''*after uncovering the bundled corpses of a married couple*''
--> '''Masuka:''' "Til death do us part" didn't quite work out for these guys. Hehehehehe...
--> ''*Dexter and Batista stare at him*''
--> '''Masuka:''' Get it? 'Cuz they're dead but...they're still together? Okay, moving on.
* DontSneakUpOnMeLikeThat: In season 2, after her recent traumatic experience of being kidnapped by a serial killer, Deb punches a guy in the nose when he comes up behind her at a bar.
* DoubleConsciousness
* DownerEnding: [[spoiler: The Season 4 finale: Dexter finishes off Trinity only to find out that same night that Trinity took out Rita beforehand, leaving their son crying in her blood]].
** Also the series finale, [[spoiler: Debra gets shot because Dexter didn't kill the Brain Surgeon when he had the chance. She develops a stroke and loses almost all brain function, and Dexter pulls the plug himself, then buries her at sea with the rest of his victims. Dexter realizes everyone he's ever been close to has died, and he decides to save Hannah and Harrison from himself by faking his death and exiling himself. The series ends with Dexter in a self-imposed prison in Canada, alone, and a devastated shell of the man he used to be]].
* DoomMagnet: Dexter is one of these. [[spoiler:Just ask Rita]].
* DramaticIrony:
** All over the place. Rita is a particularly bad offender, constantly saying things like, "Oh, Dexter would never hurt anyone."
** From the season 6, episode 10 preview: "Dexter is your safe place." [[DoomMagnet Considering how well that works out for some people...]]
** In "Buck the System," Dexter tells [[TheMafiya Mafiya]] boss Isaak Sirko, "I hope you find what you're looking for," when it's Dexter himself that Isaak is looking for.
* DrivenToSuicide:
** [[spoiler:Christine, when Debra doesn't forgive her for killing Lundy.]]
** [[spoiler:Harry, when he realizes what he let Dexter become. Or molded him into.]]
** Trinity's mother, which causes him to force other mothers of two to jump to their deaths during his kill cycles.
** Dexter catches a therapist doing this to his patients in "Shrink Wrap".
** [[spoiler:Seemingly Dexter himself in the series finale... until the last scene, which shows him alive in self exile. [[WordofGod Word of God]] states that killing himself would have been too easy]].
* DrivingQuestion: Season 1. Who is the Ice Truck Killer?
* DropDeadGorgeous: At the beginning of Season 4, a very attractive naked woman is murdered in a bathtub. We see another good-looking naked woman dead in a bathtub in episode "Shrink Wrap". In fact ''Dexter'' does this quite often.
* DrunkDriver: One of the first people we see Dexter hunt is a serial Drunk Driver who is constantly able to get out of his vehicular manslaughter charges by moving to a new location and changing his name so they cannot connect him to his previous arrests.
* DutchAngle: Occasionally a straight shot of a normal scene is contrasted with a tilted shot of Dexter watching, to make him seem off kilter.
[[/folder]]

[[folder:E - H]]
* EarlyInstallmentWeirdness: In the pilot, for Dexter's first kill, he [[DangerTakesABackseat hides in the back seat of his victim's car]], whips a garrotte around the victim's neck, and forces said victim to drive Dexter to the kill spot, whereupon Dexter kills him. Soon after Dexter starts using his regular M.O. (sedate victim, transport victim to prepared plastic-covered kill room, let victim wake up naked on table, kill victim). Also, Dexter implies off-handedly that he's more attracted to men than he is to women, but the subject is never explored again.
* ElmuhFuddSyndwome: Batista has a very subtle version of this, mostly due to David Zayas's thick accent. It's actually not really noticeable unless you're listening for it.
* EnfanteTerrible: Rather ridiculously, Dexter worries that Harrison may be this, despite the fact that Harrison was less than a year old when he witnessed a traumatic event.
* EvenEvilHasLovedOnes: A lot of the killers in the show are shown to have families and friends they care about.
** Dexter says he has no feelings, but grows quite attached to his family and some of his coworkers, and has other romantic relationships later in the series.
** [[spoiler:The Ice Truck Killer is revealed to be Dexter's brother, reached out to him so the could reunite, and wants them to kill Debra together. Dexter can't do it because he loves Deb, and tearfully kills Brian]].
** Miguel Prado loved his brothers, and is particularly broken up about Oscar's death. [[spoiler:When Dexter tells Miguel right before garroting him, he is particularly enraged]].
** Subverted with [[spoiler:Trinity. Dexter discovers to his surprise that he is a dedicated family man and a pillar of the community, but it's later revealed that Arthur terrorized his family, and all but completely ignores his oldest daughter]].
** Also subverted with [[spoiler:Jordan Chase, who is hinted to care somewhat for Emily, the woman he had his friends gang-rape years before, but ultimately has zero compunctions about murdering her when he has no use for her anymore]].
** Travis Marshall is shown to have a deep bond with his sister, [[spoiler:but she ends up killed by his evil personality]].
** Ukrainian crime lord Isaak Sirko pursues Dexter for killing his friend Viktor, [[spoiler:also his lover]].
* EvenEvilHasStandards: Basically the entire premise of the show. In the first episode, Dexter tells the very first person we see him kill - a child molester who murders his victims after he abuses them - that he could never kill children because "I have standards." Other especially notable examples:
** Though Dexter feels no remorse about killing those he knows are not innocent, he cannot bring himself to [[spoiler: murder Sergeant Doakes at the end of Season 2. At first he makes a halfhearted attempt to frame Doakes's kills in the line of duty to fit Harry's code, but ultimately he can't go through with it because he knows that Doakes is genuinely a good man, even if he's his nemesis]].
** Furthermore when Dexter accidentally chops an innocent to bits, who he thinks is guilty, he later has regrets about what he did when he finds out the truth. Perhaps it's more than just Harry's Code keeping him in line.
** However, the main theme of Season 7 is Dexter rejecting the Code and the idea of a "Dark Passenger", and accepting that he kills because he likes it. This leads him to make the exact opposite decision in Season 7 than he did in Season 2; he resolves to kill [[spoiler:[=LaGuerta=]]] to protect himself.
** A particularly blatant example is in Season 5 when the main antagonists are 5 men who raped and murdered at least 12 women, and gang-raped another two. Dexter is horrified by their crimes. He actually says that even though he considers himself a monster, their evil comes as a shock to him. What really stands out is that Dexter considered the Ice-Truck Killer and the Trinity Killer to be {{Worthy Opponent}}s, but these men just sicken him.
** "What's Eating Dexter Morgan?" shows that Dexter also hates cannibals, to the point where he reacts with uncharacteristic disgust upon finding a human finger in some stew.
* EveryoneHasStandards: When Quinn shows up at a party with a slutty girl, that girl is willing to put up with his {{Jerkass}} behavior until she learns she's just there to make Deborah jealous.
* EvilBrit:
** Lila in season 2. She's obsessed with Dexter, gets a colleague of him [[FalseRapeAccusation falsely accused of rape]], and tries to [[spoiler:kill both Dexter and his two stepchildren in a fire.]] The final episode of the season, in which she is the main villain, is even called "The British Invasion".
** Isaak Sirko in season 7. He's actually Ukrainian but spent most of his youth in England and speaks a very [[SmartPeopleSpeakTheQueensEnglish sophisticated British English]], even [[GrammarNazi correcting his American associate's drawled pronunciation at one point]].
* EvilCounterpart: Predominately the Ice Truck Killer, but in some way every murderer and serial killer Dexter takes out could be seen as his evil counterpart. He even says as much: "You are all just unchecked versions of myself." Most of the big bads can be seen as Dexter's evil counterparts in some aspects.
** Season 1: [[spoiler: Rudy Cooper/Brian Moser]] AKA The Ice Truck Killer is probably the biggest one of them all. he is [[spoiler: Dexter's biological brother, he was traumatized along with Dexter by their mother's death, both have fetishes that possibly rooted from their witness of their mother's death]] and both have the "killing urge".
** Season 2: Lila. She recognizes that both she and Dexter have something that they both refer to as "The Dark Passenger" to the point where she believes she's his "soulmate".
** Season 3: Miguel Prado. It turns out that he also has "the darkness" in him and they both live lives of deception.
** Season 4: Arthur Mitchell AKA Trinity. Like Dexter they are both family men but while Dexter has his family as his MoralityPet, Trinity is an abusive husband and father.
* EvilDetectingDog: Animals in general, and dogs in particular, loathe Dexter. Subverted by [[spoiler: Brother Sam's murderer being figured out by Dexter by the fact that it *didn't* bark at him in the kill footage]].
* EvilMatriarch: Rita's mother.
* ExiledToTheCouch: Inverted, Angel exiles himself to the couch after getting an uncomfortable look at how far [=LaGuerta=] will go to keep her job.
* {{Expy}}:
** Lundy is like Kyle Chutsky except with more screentime and no pinky ring.
** The Skinner is a torturer who mutilates his victims, similar to Dr. Danco.
** A marine biologist brought in as a consultant in Season 2 is named Manny and described as a "Prima Donna," similar to a conceited caterer.
** Tony Tucci and Neil Perry are Expys of a single character from the novels, Daryll, who works as a security guard, is arrested for the Tamiami killings, and confesses to them.
* EyeScream: In Season 7, Isaak Sirko thrusts a screwdriver into Tony Rush's eye, and later threatens Louis Greene's eye with a hand drill. [[spoiler:Subverted in the latter case, as he shoots him dead instead]].
* [[spoiler:FakingTheDead]]: Dexter in the final episode.
* FalseRapeAccusation: Lila falsely accuses Batista of rape (in actuality, they had consensual sex before she took a dose of rohipnol and injured herself in order to frame him) in order to pressure Dexter into getting back together with her, implying that she will drop the charges if he does so.
* FalseReassurance: Dexter does this just about every single time a loved one says something ironic about his true nature. That's pretty damn frequently.
* FanDisservice: One might have hoped that John Lithgow would have had some sort of, I dunno, Alba-esque moral objection to doing nude scenes. Sigh.
** A shirtless Deb scene is marred by [[spoiler:her nasty bullet scar]].
* FanserviceExtra: [[SheSpies Kristen Miller]] plays the chick Tricia at Dexter's 20th anniversary high school reunion who decides to give Dexter a blow job and takes her top off while doing it.
* FemmeFatale: Lila, Hannah [=McKay=], and Lumen, who is considerably more likeable.
* {{Fetish}}: The Ice Truck killer ([[spoiler:i.e. Brian Moser/Rudy Cooper]]) has one for amputees. Dexter's fascination with blood spatter also verges on this, something James Doakes remarks on with much disgust. It's arguable [[spoiler:that both Brian and Dexter's particular interests are a direct result of [[FreudianExcuse the chainsaw murder of their mother when they were kids]]]].
* FilkSong:
** "[[http://www.youtube.com/watch?v=nqaOFcnNCT8 Old Friend]]" by Music/{{Disturbed}}.
** "[[http://www.youtube.com/watch?v=cLik-zYYyIU Dark Passenger]]" by Veil of Maya
** "[[http://www.youtube.com/watch?v=-WuaDqw5VgA Die This Way]]" by Daniel Licht & Jon Licht.
* FingerInTheMail
* FirstPersonSmartass: Dexter is a charming, amusing sociopath, whose twisted outlook on himself and the world around him emerges as dryly hilarious. For example, in one scene when he is particularly irritated with his sister, he thinks:
-->'''Dexter:''' ''I will not kill my sister. I will not kill my sister...''
* FiveBadBand: The Barrel Girl Gang from Season 5.
** BigBad: [[spoiler: Jordan Chase.]]
** TheDragon: [[spoiler: Cole Harmon.]]
** EvilGenius: [[spoiler: Alex Tilden.]]
** TheBrute: [[spoiler: Boyd Fowler.]]
** TheDarkChick: [[spoiler: Dan "The Dentist" Mendell.]]
** SixthRanger: [[spoiler: Emily Birch.]]
* {{Flanderization}}:
** Dexter used to be a cold-hearted, meticulous, intelligent killer with no capacity for emotion and empathy. He had to put up a front to hide all that by using his then girlfriend Rita and her children. Seasons 3 and 5 are evidence that he's turned into a bumbling idiot, allowing two other strangers to watch his kills and confessing his murderous activities to them. In addition he is more sloppy than ever; one example being the season five finale where he left his blood and fingerprints in the crashed stolen vehicle in a ditch for cops to eventually see. This may or may not be the result of the increasing toll that leading a dual life has, or even DeathSeeker tendencies based on his increasing guilt.
** Deb was originally tough but occasionally emotional, and had a habit of sleeping around. As the series dragged on, the "sleeping around" angle turned into a minimum of one love interest per season. Her strong emotions, which Dexter once commented she worked hard to hide, escalated to the point where she would break down and cry almost every episode. This culminated in the beginning of Season 5, when Deb, immediately after [[spoiler:cleaning her murdered sister-in-law's blood off the floor]] with Quinn's help, broke down crying and had sex with him. Of course, this may all be [[JustifiedTrope justified]], given the increasing toll her work in homicide has on her.
*** A more minor example is Deb's ClusterFBomb tendencies, as seen in [[http://www.youtube.com/watch?v=TiH_VK4HDNc this video]]:
--->'''Season 1:''' ~50 "fuck"s\\
'''Season 2:''' ~75\\
'''Season 3:''' ~100\\
'''Season 4:''' ~100\\
'''Season 5:''' ~100\\
'''Season 6:''' ~150\\
'''Season 7:''' ~200\\
'''Season 8:''' ~200
* FlayingAlive: As his name suggests, this is The Skinner's MO.
* FootDraggingDivorcee: Rita's first husband, Paul, initially refuses to sign the paperwork, despite the fact that she had him sent to prison for domestic abuse. She later gets him to finalize the divorce, threatening to have his visitation rights to his children revoked if he doesn't sign.
* {{Foreshadowing}}: Every season ends with a cue regarding the main theme of the next one:
** Season 1 ended with Dexter contemplating what it would be like if his actions were exposed and with Doakes gesturing ‘I’m watching you’ at him; in season 2, the bodies he dumped are revealed and Doakes pursuit of him becomes more pivotal.
** In the season 2 finale, Dexter says, ‘It's strange to have a creation out there, a deeply mutated version of yourself running loose and screwing everything up. I wonder if this is how parents feel?’; in season 3 he meets someone who becomes his partner and makes a big mess for Dexter to handle, and Rita is pregnant.
** In the season 3 finale, Dexter and Rita [[spoiler:get married, and blood from Dexter’s hand stains Rita’s wedding dress]]; in the season 4 finale, [[spoiler:Rita is murdered]].
** In the season 4 finale, Dexter claims he’s the source of the problems of everyone around him; in season 5 he challenged this notion by experiencing being the solution.
** In the season 5 finale, Dexter talks about salvation at length; in season 6, religious salvation is dealt with in depth.
** In the season 6 finale, [[spoiler:Deb catches Dexter in the act]]; season 7 deals with the implications of this on their relationship.
** In the season 7 finale, Dexter talks about the influence of breaking one’s own most basic rules and the new ground discovered thereby, following [[spoiler:Deb killing [=LaGuerta=] to protect Dexter]]; season 8 shows exactly what happens to [[spoiler:Deb]] and introduces [[spoiler:the inventor of Harry’s code]].
** Finally, in the final shot of the series, [[spoiler:Dexter silently comes into his new home, a modest cottage, where he lives alone, and finally looks into the camera with a ThousandYardStare]]; this implies that [[spoiler:nothing new will come into Dexter’s life anymore, and he’s destined to have only a quiet, empty existence from now on]].
* FreudianExcuse: Dexter's StartOfDarkness is considered hard to reverse after he witnessed the brutal murder of his mother and was left in the ensuing blood pool when he was only a child. Dexter rationalizes that Brian was too old and past salvation after this.
* FriendToAllChildren - Dexter: Serial Killer. Has quite a soft spot for kids. Or maybe just hurting them is a BerserkButton[=/=]EvenEvilHasStandards moment, [[spoiler: considering his origin]].
* FriendToPsychos: In some seasons, Dexter becomes friendly with the BigBad, only to later realize that they need killing after all.
* FullFrontalAssault: The Trinity Killer in the Season 4 premiere. Super creepy.
* FunctionalAddict: Dexter is certainly "addicted" to his "hobby", but doesn't necessarily let that addiction rule his life.
* FunTShirt: Season 5, episode 3, Dexter borrows an apron from a victim that reads "[[NaturalBornKillers Natural Born Griller]]."
* TheGadfly: Dexter is this to Cody, making up outlandish NoodleIncident stories with a straight face just to entertain him.
--> '''Cody:''' ''How did you get that ugly scar?!''
--> '''Dexter:''' ''Swordfight. I won.''
* {{Gayngster}}: Isaak Sirko, as well as Viktor Baskov.
* GiantMook: Little Chino, the only person thus far to ever escape from Dexter's table.
* GoodIsNotNice: James Doakes is an anti-social JerkAss with a penchant for violence, but a damn fine cop and a good person at the end of the day.
* GratuitousSpanish: Lots, given the highly Latino population of Miami. [=LaGuerta=] is a major offender. Angel isn't much better. Miguel also throws Spanish out there every once in a while but he was usually speaking to a Hispanic American character.
* GreyAndGreyMorality: This applies to season 2 with Dexter and [[spoiler: Doakes]]. The antagonist of every other season have been serial murderers with multiple kills under their belt, at the very least.
* GroinAttack: Deb delivers a shot straight to a perp's nuts in "Buck the System".
* GrossUpCloseUp: The opening credits.
* HannibalLecture:
** Dexter's victims try this occasionally, but it never works.
** Neil Perry tries this on [=LaGuerta=], but [[FeetOfClay fails hard.]]
** When The Skinner captures Dexter and prepares to torture him, Dexter chews him out before escaping.
* HappilyAdopted: With a twist, Dexter was happily adopted by the Morgans, a caring family, but Harry was unable to correct his homicidal nature and just canalized it.
* HelloNurse: Masuka's sexy intern draws interest in Season 6 from not just Masuka but most of the men in Miami Metro Homicide.
* HeroAntagonist: Multiple examples, all in opposition to Dexter, the serial killer protagonist.
** Sergeant Doakes, though [[AntiHero his morality is called into question a few times]]. Somehow, he's the only one in a precinct full of cops and forensic specialists to get a creepy vibe off serial killer protagonist Dexter. [[spoiler:This doesn't end well for him. When he discovers that Dexter is a serial killer in season 2, Dexter locks him up in a remote cabin. Then Doakes is killed by a woman who was obsessed with Dexter and tries to cover up for him.]]
** Special Agent Frank Lundy in the second season of the same. He probably would have caught Dexter [[spoiler:if it weren't for Doakes' suspicious and secretive behavior making him more conspicuous than Dexter.]]
** Detective Quinn is set up as this in season 5. He's the only one in the office who notices that the Mitchell family's sketch drawings of "Kyle Butler" look a lot like Dexter, and starts to suspect that Dexter may have killed [[spoiler:Rita, his wife. At the end of the season, he abandons his investigation when Dexter gets him off the hook for a murder that Quinn is erronously suspected of (in fact, Dexter himself committed the murder), and he falls in love with Debra.]]
** Stan Liddy in season 5 as well. Although he's a DirtyCop, and is trying to expose Dexter mostly for his own benefits so that he will be reinducted into the police force, he is still trying to catch a serial killer. [[spoiler:Dexter kills him, and Quinn is subsequently suspected of the murder.]]
** Maria [=LaGuerta=] in Season 7. She discovers evidence that may expose Dexter as the real Bay Harbor Butcher, and starts her own investigation. [[spoiler:Dexter dismantles her case by setting her up as having an irrational grudge against him instead of solid evidence. Dexter then tries to kill her to get rid of her permanently, but Debra intervenes and shoots [=LaGuerta=] to cover up for her brother.]]
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* HiddenVillain: The Ice Truck Killer in season 1, The Skinner in season 3, and the Brain Surgeon in season 8.
* HiredToHuntYourself: Dexter is sometimes put in the position to investigate his own crime scenes.
* HitlerAteSugar:
** On Dexter's advice about Cody's school assignment:
---> '''Rita's mom:''' ''Dexter does drugs. He is wrong.''
** On Lundy's walking style:
---> '''Masuka:''' ''That's exactly how Hitler walked.''
* HollywoodGenetics: Rita and Paul are blond, but their kids Astor and Cody are brunettes.
* HollywoodThin: Debra and Quinn. Quinn is so thin his cheeks are concave.
* HopeSpot:
** Just when it looks like Doakes is going to be able to [[spoiler:put out the stove in time to keep the cabin from exploding... boom]].
** In the series finale, just when it seems like [[spoiler:Deb]] will pull through from getting shot, [[spoiler:she is suddenly reduced to a vegetative state, prompting Dexter to pull the plug and let her die]].
* HorribleJudgeOfCharacter:
** Rita. A violent junkie, a serial killer, and another marriage we know almost nothing about but presumably ended badly. Dexter lampshades it and thinks the effect it would have on her is a major reason to not get caught.
** Deb also gets into some ill-advised relationships.
* HuntingTheMostDangerousGame: Dexter hunts people as a matter of course, but his idea of a really good time is to go after a killer who is hard to get at, able to put up a fight, or expecting a visit from him. [[spoiler:e.g., a cop who killed her husband and daughter, a public figure with lots of bodyguards, a neo-Nazi currently in prison but still giving orders to his minions on the outside, his friend and co-killer the district attorney, etc.]]
[[/folder]]

[[folder:I - L]]
* ICannotSelfTerminate: [[spoiler:Camilla]] begs Dexter to kill her in Season 3. [[spoiler:Dexter dutifully does]].
* IdiotBall:
** Passed around from time to time to insure Dexter's survival.
** Oddly, Dexter takes firm hold of the Idiot Ball in Season 6 after being a quite meticulous killer in previous seasons. [[spoiler:Totally misjudging Travis]], "anonymously" tipping off the cops from his own phone using his own voice, making a video of himself [[spoiler:taunting Travis]], attempting to jump [[spoiler:Travis]] while dizzy from the aftereffects of being gassed, setting up a kill scene [[spoiler:in a room that Deb knows he will be in]], c'mon, Dex, get it together.
** Over and over again Dexter fails to kill his target at the first opportunity and it comes back to haunt him. [[spoiler: Lila, Miguel, Trinity, Travis, Hannah, [=LaGuerta=] & Saxon could all have been taken care of much earlier. In the case of Trinity it costs him Rita, in the case of Travis it costs him his cover when Deb sees Dexter kill Travis, for [=LaGuerta=] it forces Deb to kill him, and with Saxon it costs at least one person their life, and may cause Debra to be killed.]]
** Rita understandably held a massive one whenever Paul was involved. It makes sense character-wise because she was supposed to be extremely vulnerable, weak and with clouded judgement.
* IfYouEverDoAnythingToHurtHer: Dexter, to Rudy. [[spoiler:Better known as The Ice Truck Killer. Dexter follows through]]. Threat nullified in the books.
* IgnoredConfession: In Season 8, [[spoiler:Debra drunkenly confesses to Quinn that she killed [=LaGuerta=], but Quinn interprets this as Deb just blaming herself for failing to be there to save [=LaGuerta=], and not that Deb literally killed her]].
* IJustWantToBeNormal: Dexter often monologues that he wishes he could feel like everyone else, stripped of his own drives to slaughter. He even uses this to get closer to Rita after asking a couple about the secret of a successful relationship right before he kills them.
* TheIllegal: A source for both a few-episodes B-story and a VictimOfTheWeek or two.
* ImAHumanitarian: Ron Galuzzo in Season 8.
* ImaginaryFriend: Harry Morgan starts out as a PosthumousCharacter shown in flashbacks but eventually becomes this, with Dexter having lively chats with his imaginary dead father in almost every episode after Season 2.
** [[spoiler:Dexter's brother, Brian Moser the Ice Truck Killer]], fills this role briefly in both Season 2 and Season 6.
** [[spoiler:Prof. Gellar for Travis in Season 6]].
* IndulgentFantasySegue:
** In season 3, Miguel Prado [[spoiler:finds Dexter at the scene of a fresh kill and accidentally gets blood on his shirt. He later gives Dexter the bloody shirt]] as a token of friendship and a guarantee of secrecy. When Dexter becomes suspicious and [[spoiler:tests the shirt, he discovers that it's a fake, daubed with animal blood]]. His explosion of rage is revealed to be this trope.
** In season 7, there are two examples in the same episode. The first is Dexter standing in line at the post office for a long time, and when he reaches the front the desk lady closes the line. Then he imagines slitting her throat in front of everyone. He imagines doing the same to Masuka back at the office when he imagines Masuka insulting him.
* IndyPloy: Dexter is very, very good at improvising when he has to convince somebody that his more suspicious mannerisms definitely aren't those of a homicidal sociopath.
* InelegantBlubbering: Deb when she returns to the place where [[spoiler:Frank Lundy was killed]].
* InformedAttribute: For a supposed tough-as-nails cop, Deb does seem to burst into tears a lot.
* InformedFlaw: Some judgments Dexter makes might be the result of his [[UnreliableNarrator personal biases]].
** Dexter justifies his hobby in part by claiming that Miami police won't or can't do its job right. But as the show unfolds, we see them only a few steps behind the perpetrators, and Dexter only manages to stay one or two steps ahead of them because he's head-deep in just about anything they're investigating. He even suppresses evidence or won't share with them to artificially slow them down.
** Dexter describes Boyd Fowler as being rather dumb, yet Boyd has already made several very observant remarks that throw Dexter for a loop. He sees that the raccoon Dexter killed was not a real roadkill and notices that Dexter has recently taken off a wedding ring.
* InnerMonologue: Dexter uses this a lot. It helps highlight the difference between the socially acceptable role he plays and his true (sociopathic) thoughts and responses. Though in later seasons it was more used to [[NarratingTheObvious describe what was happening onscreen.]]
* InstantSedation:
** Dexter frequently uses this to get his targets to a more secure area. Justified as it takes the form of a syringe with [[http://en.wikipedia.org/wiki/Norpropoxyphene Norpropoxyphene]], a powerful and dangerous animal tranquilizer that knocks the target out instantly, and really can knock a person out that fast in real life. Admittedly, he always gets them in the neck and he's not terribly concerned about long-term health effects, which can include kidney and heart damage, for hopefully obvious reasons.
** Played with in the season six finale. Did you think that Dexter went down a little too suddenly when asked to inject himself? Yes, he did.
* InternalAffairs: Surprisingly for a show about a member of the police force who kills people in his spare time, not that commonly used. However, it does form the basis of two minor subplots:
** The first is in season 1. Doakes shoots a man on the street, Angel is torn between reporting discrepancies between the shooting and Doakes' report. He eventually comes clean, but Doakes still stands up for Angel when the other officers call him out on it.
** The second is a somewhat painful subplot in season 3 featuring incompetent IA officer who harasses Deb in order to get her to turn over on her (very mildly corrupt) partner, which Deb resists because the IA officer gives no details on why she's pursuing Deb's partner whatsoever, and instead just hounds Deb and interferes with her job (not in an ObstructiveBureaucrat way, more of a "yappy dog getting in the way" manner).
* TheInternetIsForPorn:
** Invoked by Dexter sometimes when he is researching a prospect in his computer and another character may snoop on or take a glance, he switches to a NSFW site to project an image of normality.
** Louis provides an [[PornStash offline version]] of the trope.
* IronicNickname: Little Chino, who's an absolute giant of a man.
* ItsAllMyFault: Dexter has killed dozens of people and felt no remorse, but when he finds [[spoiler:his wife, Rita,]] dead, his shocked response as police arrive is to blurt out "It was me."
** In the series finale, this drives Dexter [[spoiler:not to follow through on his plans with Hannah and Harrison after Deb dies from getting shot by Saxon, after Dexter willingly gave up his chance to finally get rid of him]].
* ItsPersonal: Miami Metro makes the ''LawAndOrderSVU'' cast seem like level-headed, impartial observers by comparison. Is there a major crime they investigate where one of their own ISN'T related to, sleeping with, or ''being'' the perp?
* {{Jerkass}}:
** Vince is a bit of a jerkass and prone to making rude comments, though he's also a ButtMonkey at the same time. In Season 3 he gets softened. No one turns up to a conference he speaks at or reads an article he gets published and he begins acting polite for a while. The other characters apologise and say that they preferred him before. This is further developed in Season 4 when he agrees to keep Deb company for Thanksgiving and shows genuine dismay at having to keep a secret from Dexter [[spoiler: about his marriage.]]
** Doakes, especially in season one, most clearly in episode one. It doesn't matter if a coworker gives you the creeps, berating them and yelling profanity at them as you demand they do something for you is behavior that would be likely to get you fired if you weren't best buds with the boss. He becomes gradually more sympathetic as the show goes on. In Season 2 he even got a Pet The Dog moment about his failed marriage [[spoiler: so that his death would be more tragic, making Lila less sympathetic.]]
* KarmaHoudini:
** Dexter. While it's all in the service of the community (as he sees it) and while it gives him no end of trouble, he does kill people and avoid getting caught. [[spoiler:He even got to pin most of his murders on Doakes.]]
*** In the series finale, Dexter [[spoiler:fakes his death and starts a new life elsewhere, and his dark secrets are never even exposed. Some viewers, however, see this as a fitting FateWorseThanDeath-type punishment, as Dexter has lost everyone he loves and is apparently living in isolation and misery]].
** Marco Fuentes is still on the run, and Cira Manzon got away with setting Deb up to take the blame for his escape.
* KarmicDeath:
** This show plays heavily on this trope. It's about a SerialKillerKiller, what else can you expect?
** Santos Jimenez kills [[spoiler: Dexter's mother]] with a chainsaw. Guess how he meets his end...
** [[spoiler: Dexter ultimately kills Arthur with a claw hammer, the same way Arthur killed innumerable others, including his last ritual victim]].
* KavorkaMan: Masuka, it would appear. He always seems to get good looking girls, and it crossed a bit of a line with the girl he brought to Harrison's birthday party.
* KilledMidSentence:
** The Ice Truck Killer.
** Also the used car salesman who insulted Rita while Dexter had a very sharp knife near his throat.
* TheKillerInMe: In season 6 [[spoiler:Professor Gellar is a split personality of Travis after he killed the real one]].
* KnifeNut: Dexter.
* KnightInSourArmor: Doakes, Harry.
* KnightTemplar: Obviously, a few characters are this to some to degree, but especially Miguel.
* TheLabRat: Dexter and Masuka are often called this.
* TheLadette: Debra. ''"Ugh, me in a dress... I feel like a transvestite."'' Also Lila and, to a lesser extent, Maria [=LaGuerta=].
* LampshadeHanging:
** During Season 5 Dexter says things to himself only to be repeated by Jordan Chase out loud. Dexter lampshades this himself the second time it happens.
---->'''Dexter: (thinking to himself) ''"Jordan is one tough nut to crack."''
---->'''Jordan Chase:''' (out loud) "You're one tough nut to crack; you know that, Dexter?"
---->'''Dexter:''' (still thinking) ''"I wish he'd stop doing that.''
** In the season 6 premiere, Angel refers to how great of an idea it was for him and his sister to get the apartment next to Dexter because it lets him slip in and out day and night without anyone knowing. Considering the whole premise of the series[[note]] and the previous '''five''' seasons[[/note]], there is no way this was accidental.
* LanguageBarrier:
** When off-duty Sergeant Doakes is lost in the Everglades forest, fleeing from the Bay Harbor Butcher, he meets two dangerous smugglers who speak only Spanish. He asks them for help, but when they understand that he's a policeman, they take him hostage and decide to kill him. In this case, international words and Spanish PoirotSpeak made the situation go FromBadToWorse.
** Debra Morgan, being a Detective and later a Lieutenant at Miami Metro PD, doesn't know Spanish, even though Florida is full of Cuban and South American immigrants. In Season 5, she swears she will take Spanish classes after one particularly painful questioning of a witness. It was a bit strange that it didn't occur to her to just call one of her colleagues, as many of them are of Hispanic heritage.
* LastNameBasis: Almost all the characters in Miami Metro, unless they're particularly close to each other (Angel Batista and Maria [=LaGuerta=] during their mariage, siblings Dexter and Debra Morgan, etc.). This sometimes leads to confusion when a character calls out for "Morgan" when Dex and Deb are both present. Subverted to great effect by [[spoiler:Doakes to Dexter in episode 2.11 to reflect that in addition to capturing a killer, he now also wants to help Dexter by turning him in]].
* LastSecondWordSwap: In season 4, when Debra learns that the Trinity Killer [[spoiler:works in the school system]] during thanksgiving with children in the room:
---->Debra: June, July, August.... oh ffffff *looks at child in her arms* -uddge....
* {{Leitmotif}}: In season 4, the Trinity Killer is given "Introducing Trinity" and "Trinity Suite", ominous and haunting themes that illustrate his dark nature as a serial killer. It reappears in season 6 when [[spoiler:the cops think they may have found him (in reality, Dexter killed him), but it is instead his son who did the murder]].
* LighterAndSofter: Compared to the books, the show is downright tame in regards to violence. This falls partially in the PragmaticAdaptation zone, as some of the books' content would be unsuitable even for Showtime.
* LonelyFuneral: Due to the fact that everyone assumed him to be the Bay Harbor Butcher (instead of Dexter) [[spoiler:Sergeant Doakes]] has a funeral attended only by his mother, his two sisters, and his former partner. Emphasized when the former partner suggests starting up a memorial fund in his name, and everyone looks at her like she's high.
* LookingForLoveInAllTheWrongPlaces: Oh, Deb. Her book counterpart luckily has Chutsky.
* LostAesop: Season 6 is trying to say ''something'' about religion. What that is beyond "Religion is weird, huh?" is anyone's guess.
* LovableSexManiac: Masuka. To a point. Deb certainly thinks he's better as one.
* LoveMakesYouDumb: The Lieutenant of Miami Metro PD at the end of season 1 and beginning of season 2, Esme Pascal, got hit by this between seasons. She's shown to be a ReasonableAuthorityFigure, a very competent cop, and a pretty good person. But when she suspects her fiance is cheating on her (he is, mind you) she completely breaks down and handles her investigation into his infidelity... poorly, to say the least.
* ALoveToDismember: The Ice Truck Killer is referred to as having chosen not to kill a hooker when he realised she was an amputee. She says that he "started worshipping it (her fake hand)" and did "some freaky stuff with it (as well as her stump)". Given his obsession with dismemberment, it is implied that he may have used the parts of his victims for this as well. [[spoiler:It's later revealed that they are lingering issues from his mother's death and dismemberment by a bunch of gangsters with a chainsaw. He's Dexter's big brother Brian]].
[[/folder]]

[[folder:M - P]]
* TheMafiya: Part of the plot of Season 7.
* MagicalNanny: Sonya in Season 5, and Jamie in Season 6. Dexter never, ever has a problem getting his nanny to look after Harrison, no matter how late he is out murdering or how unpredictable his schedule is.
** Sonya eventually has enough of it though. And an offhand comment by Jamie in Season 7 suggests that Dexter pays her quite well.
* MagicalNegro: Brother Sam in Season 6.
* MaleGaze: To be fair, Deb did take her shirt off, and any red-blooded straight male would be distracted.
-->'''Debra:''' Jesus, Masuka, they're just tits.
** Sgt. Batista gets one of these from one of Masuka's (female) forensics students in the season 6 premiere.
* ManicPixieDreamGirl: Lila, with serious emphasis on the [[{{Yandere}} "manic"]].
* ManipulativeBastard:
** Dexter. For a guy who doesn't understand human emotions, he's pretty good at manipulating them in other people. This is an [[TruthInTelevision actual requirement]] for sociopaths.
** This is the M.O. of the BigBad of season five.
* MarriedToTheJob: Debra, Lundy and Batista are competent investigators who have a very limited life outside of the job.
* TheMasqueradeWillKillYourDatingLife: Dexter has relationships of varying lengths with Rita, Lila, and Lumen. Due to his double life, none of them end well.
* MayDecemberRomance: Deb and Lundy.
* MeaningfulEcho:
** "It doesn't matter what I do, what I choose.... ''I'm'' what's wrong."
** "Hello, Dexter Morgan." [[spoiler:Spoken to Dexter by both Father and Son (The Trinity Killer and Jonah) to show that the son is following in the Father's footsteps. Later subverted however that Jonah actually wasn't evil, having killed his mother in revenge for her vehemence leading to his sister's suicide]].
* MeaningfulName:
** In Latin ''Dexter'' means right and is the opposite of left, which is ''Sinister''. The main character must follow the Code of Harry so as to appear as Dexter and not let on that he is Sinister. Dexter also refers to quickness, skill and grace, which are traits that Dexter must always display to stay alive.
** Lila is Hebrew for "night". Lumen is named after a unit of light, i.e. the opposite of Lila.
* MidlifeCrisisCar: In season 6 Batista gets a Trans Am.
* MirrorScare: Appears in the season 4 opening, as the Trinity Killer claims his first on-screen victim.
* MistakenForCheating: Done at least twice:
** In Season 2, when Dexter and Rita are about to, er, do the deed, Lila calls...and mentions their road trip, where he confronted his mother's killer, and then they slept together (but did not have sex.) Unfortunately, he lets the machine get it, and Rita hears everything and thus suspects he was cheating. Later on, Lila and Dexter do have sex, but only after Rita breaks off the relationship.
** And played with in season 3. At first it's played straight when Miguel's wife suspects him of cheating...when, in fact, Miguel can't say where he was because [[spoiler:he was committing a murder]]. Then later his wife catches when he did actually decide to rekindle an old romance, albeit for ulterior purposes.
* MistakenForJunkie: When Dexter is caught in his web of lies at one point and thinks he is going to be exposed as a serial killer, instead it is assumed that he is a drug addict. [[SureLetsGoWithThat He goes along with it]].
* MonsterFangirl:
** Dexter himself gets a fangirl in Lila, who sees him as a misunderstood creature and her soulmate when she finds out that he is actually a prolific SerialKiller.
** The killer in Season 6 gets legions of online fans, plus a pair of fans who actually aid him in a kill.
* MoodDissonance:
** The morning breakfast-and-grooming routine never looked so sinister.
** Dexter wears Mickey Mouse ears while [[spoiler: telling his step-children about the death of their mother]].
* MoralDissonance: An unusual case of this, as Dexter is an antihero at best. But early on, Dexter drummed into the audience that he follows Harry's Code strictly and only kills murderers. He also told one of his victims that his standard of proof is ''higher'' than that of the justice system. However, we saw him kill no less than three innocent people. What's more, each successive innocent kill was less justifiable than the previous one. The first was a child molestor who appeared to be targeting Rita's daughter, but never killed anyone. The second was a mistake on Dexter's part [[spoiler: it was actually his assistant who was the murderer, and Dexter's judgment was clouded from trying to put off killing Arthur]]. The third was just a random guy who was mean to him when Dexter was in a bad emotional state. At this rate, he'll be killing girl scouts by next season.
** The first and third are justified by him in that they were a threat to himself (the third, a biker who insulted and threatened him) and his family (the pedophile.) Whether they're innocent or not is debatable, particularly in the case of the pedophile who Dexter labels in a similar way to himself. When he makes a mistake by killing the wrong person, it's clear that he feels guilty over making such a mistake.
* MoralityPet: Astor, Cody, Deb, Rita, Harrison.
* MoreThanMindControl: In season five, [[spoiler:Jordan Chase seems to be adept at this, especially on Emily Birch]].
* MorningRoutine: The famous [[http://www.youtube.com/watch?v=ej8-Rqo-VT4 opening sequence]].
* MsFanservice:
** Lila. "Pardon my tits."
** Christine the reporter from Season 4.
** Ryan, the intern of Masuka from Season 6.
** Niki, in Season 8.
* MuggingTheMonster:
** In "Dex Takes a Holiday", Dexter stalks a police officer whose husband and child were killed. The blood evidence suggests that she may have actually murdered them and planted evidence to incriminate a known thief. She goes to kill Dexter (whom she sees only as a nosy blood guy) and plans to make it look like he was killed in a house invasion. Little did she know...
** This was toyed with in the storyline with revenge on Dexter's mother's murderer. Both Dexter and the perp knew one another at the time. When he tries to kill Dexter, Dexter plays it off as an attempted mugging, leading to many trope-invoking comments from the other Miami PD.
* MurderSimulators: In a season 6 episode, forensic intern Louis Greene (who is also a video game developer) excitedly shows Dexter a game he is working on, a literal murder simulator where you can play as Jack The Ripper, Jeffrey Dahmer, or the Bay Harbor Butcher (actually Dexter himself, unbeknownst to Louis). Dexter is disgusted and asserts that no one should ever want to play such a game.
* MyFriendsAndZoidberg: First season, second episode: "Crocodile"
-->Dexter: "Unlike the other guys down at the station, I love coming to court to rub shoulders with the good people of the sunshine state..." * scruffy guy bumps into him* "... and Sasquatch."
* MyGodWhatHaveIDone: Harry doesn't say this line, but he clearly thinks it, reeling in horror in a Season 2 flashback when Dexter's training culminates in Dexter bringing a kill home.
* MySisterIsOffLimits: Without ever stating it out loud, Batista heavily implies this to Louis when he starts dating Batista's little sister Jamie.
* NarratingTheObvious: Dexter's InnerMonologue is frequently redundant.
* NaughtyUnderTheTable: In a season one episode, Deb and her date are making out across the table, which causes Rita to feel insecure about the lack of sex in her and Dexter's relationship. She responds by putting a hand on his thigh under the table, but he merely looks uncomfortable and tries to ignore her.
* NecessarilyEvil: Partially subverted, since Dexter is not so sure whether he really is necessary.
* NeckSnap: Dexter kills the Skinner and Dan the Dentist this way.
* NerdsAreSexy: Dexter is seen as very nerdy in his day job but also gets hit on quite a bit.
* NeverSuicide: Played with: the victims actually were suicides, but their therapist drove them to it.
* NeverTrustATrailer: The teaser for the last episode of Season 5 strongly suggested that Deb would find out about Dexter's "hobby". She doesn't. [[spoiler: Until next season's finale]].
* NewYearHasCome: Season 7 ends with a New Year's party and "Auld Lang Syne" being sung at midnight.
* NiceHat: Angel has a collection of nice hats.
* NiceJobBreakingItHero: Dexter has done this a lot.
** In Season 2, Dexter's criminal career, and his hesitation to turn himself in when Doakes urges him to, [[spoiler:gets Doakes killed and blamed for Dexter's crimes]].
** In Season 3, Dexter's mentoring of [[spoiler:Miguel]] gets [[spoiler:Ellen Wolf]] killed.
** In Season 4, Dexter's season-long game of footsie with the Trinity Killer gets [[spoiler:Rita]] killed (as well as leaving the Trinity murders officially unresolved, with the FBI chasing a dead man).
** In Season 5, Dexter's hunt of Jordan Chase and the Barrel Boys gets [[spoiler:Emily Birch]] killed.
** Season 6 is the worst example for Dexter. He keeps screwing up in his attempt to catch the Doomsday Killer before the police. This allows the killer to get away from the police just as they are closing in. If Dexter hadn't withheld evidence, Debra would have probably caught the killer by the middle of the season and prevented all the additional deaths.
* NightmareFetishist: Dexter shows shades of this in season 1. The first time he shows sexual interest in Rita is while talking about a victim of the Ice Truck Killer.
* NinetiesAntiHero: When Dexter's dump site is discovered to be filled with multiple murderers that have slipped through the cracks, Miami artists quickly immortalize him as "The Dark Defender", a ''perfect'' 90s Anti-Hero; "Stalker of the night, his blade of vengeance turns wrong into right..." The "real" Dark Defender, upon seeing a pin-up of the character, has the most satisfied smile on his face for all of three seconds before he shakes it off as absurd not for any moral reasons (Dex is a PoeticSerialKiller and ''proud of it''), but because, "[[AwesomeButImpractical Miami's too hot for all that leather]]". He does later have an IndulgentFantasySegue where he crashes the key moment of his "SuperHeroOrigin", kills the bad guys and saves [[spoiler:his mother from being [[DeathByOriginStory hacked to gibbets with a chainsaw]].]] In leather.
* NoCelebritiesWereHarmed: Miami's hockey team is the fictional "Miami Blades" rather than the real-life Florida Panthers.
* NosyNeighbor: Sergeant [[foldercontrol]]

[[folder: James Doakes ]]
.
* NotBloodSiblings: The show finally goes here at the end of Season 6, when, with the help of a curiously enabling therapist, Deb comes to realize that she is romantically in love with Dexter. Whether or not she will act on this remains to be seen. [[spoiler: In season 7, feeling betrayed and angry, she confesses her feelings to him]].
* NotEvenBotheringWithTheAccent: Brit Ray Stevenson plays a Ukranian crime lord with his natural British accent. He mentions having a British accent to explain it.
* NotInFrontOfTheKid: Debra won't swear in front of Dexter and Rita's infant son. She's dropped f-bombs on live television and in a hospital waiting room full of children, though.
* NotSoDifferent:
** The BigBad in almost every season is basically an EvilCounterpart to Dexter. Sometimes they try to pull this trope, while other times Dexter just comes out and admits it, but always affirms that he ''is'' different because of his Code.
** Former Army Ranger Doakes is regularly compared to Dexter; Good/Bad People doing Good/Bad Things for Good/Bad Reasons. Doakes actually performs a VigilanteExecution - a [[http://en.wikipedia.org/wiki/Tonton_Macoute Tonton Macoute]] he recognized from his operations in Haiti. [[ArmiesAreEvil Soldiers in general]] are implicated as well; another Ranger talks about how [[WarIsHell killing, even in the line of duty,]] naturally turns people into [[SociopathicSoldier sociopaths]].
* NotSoStoic: Dexter likes to think he's TheStoic, but really who's he fooling here?
* NotWhatItLooksLike: Inverted with the first lines of "That Night, A Forest Grew".
* ObliviousGuiltSlinging:
** When Cody has nightmares of the Bay Harbor Butcher, Rita tells Dexter she hopes that the Butcher is found and hurt badly. Followed by:
-->'''Rita:''' Anyway, have a nice day.
-->'''Dexter:''' ''(internally)'' Make your mind up...
** Jamie and Batista are having a conversation about Jamie's ex-boyfriend Louis, who cheated on her with a hooker. Jamie asks who would possibly sleep with a hooker, not knowing that Batista almost got arrested in Season 3 for trying to do just that.
* ObstructiveVigilantism: Basically the whole point of the show.
* OfficeRomance:
** It's revealed in season 2 that Lieutenant Maria [=LaGuerta=] had an affair with Sergeant Doakes when they used to be partners and a pair of detectives. They broke up but stayed close friends.
** Angel Batista from Homicide dates one detective from Vice. They're OK because it's allowed to see people from other departments. When they broke up, one of Batista's colleagues says to Angel that office romances never work out, but asks whether he can ask her out.
** Lieutenant Maria [=LaGuerta=], a boss of Homicide, and Sergeant Angel Batista start a sexual affair in season 4. Their superior Captain Matthews wants them to either break up or have Angel transferred to another department. They decide to marry and the pro-family politics allows them to stay together and both at Homicide department. Season 6 begins with them being AmicablyDivorced.
** Deb Morgan and Detective Quinn. They started as FriendsWithBenefits, but later became a regular couple. Debra's promotion to Lieutenant and the new head of Homicide of Miami Metro PD essentially ends their relationship, although Debra never saw them as something super serious in the first place.
** There is a very brief romantic flirting between Masuka, a forensics expert, and Ryan, his sexy blonde of an intern. They also had the forbidden teacher/student dynamics. She screwed him over, stealing [[CreepySouvenir The Ice Truck Killer's prosthetic hand]] from the evidence room. He ended their relationship and he fired her as well.
* OffTheRails: Starting from the second season the show leaves the books for original plotlines.
* OhCrap: The Oh Crappiest Oh Crap that ever Oh Crapped ends Season 6, [[spoiler:when Debra catches Dexter in a murder]].
* OnceASeason: Dexter's apartment gets broken into by an antagonist ''at least'' once every season (by [[spoiler:the Ice Truck Killer, James Doakes, Ramon Prado, the Trinity Killer, Stan Liddy, Travis Marshall, Isaak Sirko, and the Brain Surgeon]]).
* OnceMoreWithClarity: Season 7 opens with Dexter rushing to the airport, finding all his credit cards canceled, and pulling emergency cash from his bug-out bag to buy a plane ticket to eastern Europe. Since Season 6 ended with [[spoiler:Debra walking in on a kill]], we expect he's fleeing the country. The episode then rewinds to where we left off Season 6, and the second time we get to the airport it turns out [[spoiler:Dexter's just rushing to catch a murderer before ''he'' flees the country, and the problem with his credit cards is unrelated]].
* OnlyBadGuysCallTheirLawyers: In the season 5 finale, the other characters (all police officers) treat Quinn this way when he requests to speak with an attorney when it's likely that he might be implicated in a crime that he didn't actually commit.
* TheOnlyOneAllowedToDefeatYou: As Miami Metro Homicide grows more competent, Dexter's murderous urges and his obsession with being the one to catch and kill certain foes lead to him increasingly undercutting and sabotaging the ongoing investigations of the police (who are usually pretty damn close to solving the crimes) so he can be the one to take the bad guys out. This usually backfires horribly on everyone involved.
** It also highlights Dexter's MotiveDecay. Harry repeatedly warned him to only go after the ones who had successfully evaded the system.
* OnTheRebound:
** Lila is explicitly referred to as a rebound for Dexter after Rita dumps Dexter (ironically, because Rita falsely believed Dexter had slept with Lila).
** Lumen is a ReplacementGoldfish for Rita after [[spoiler: she dies]], being a blonde BrokenBird herself.
* OutlawCouple:
** According to Masuka, Dexter and Lumen.
** In season 7, the story of Wayne Randall and Hannah [=McKay=].
* PacManFever:
** Prominent enough throughout, with first-person shooters accompanied by the beeps and whistles from Galaga.
** Perhaps most notably in the season 3 premiere, when Freebo is playing an [[NoLawyersWereHarmed obvious Wii bowling knock-off]] and we still get 80s-era bleeping.
** Later in Season 3, Dexter is playing ''{{Halo 3}}''. On a computer. With no mouse. With sound effects from the 70s clearly dubbed in.
* EeriePaleSkinnedBrunette: Lila, as a big part of her appeal. Angel notes that she's like a beautiful porcelain doll.
* PapaWolf: Letting Dexter think you're a potential threat to his stepkids [[spoiler: or Harrison, his biological son]] should probably qualify as assisted suicide. Letting him think you're a threat to Rita, Deb, or Lumen is nearly as bad an idea if you want to survive the experience.
* ParentalAbandonment:
** Deb feels this way about Harry.
** In season 4, [[spoiler: Christine feels this way about her father, Arthur Mitchell (the Trinity Killer). She killed Lundy and shot Deb, hoping she would gain approval from him for protecting him from their investigation.]]
* ParentWithNewParamour: Rita with Dexter. She trades a wife-beater for a serial killer, who is ironically a big improvement.
* ThePasswordIsAlwaysSwordfish:
** In season 4, Dexter has a short-term memory loss. But he remembers his password, which is "Harry". Not a perfect choice since Dexter has to hide a lot.
** In "A Beautiful Day," Dexter's first guess at Deb's bank account password ("password") fails. But he soon types in the correct one: "[[spoiler:''[[SirSwearsALot fucking]]''password]]".
* PayEvilUntoEvil: Harry's code.
* PermaStubble: Dexter himself. He's shown shaving in every opening sequence, but we see no more than a few swipes at his neck, so he apparently cultivates the look intentionally. [[spoiler:The final shot of him in the series is one with a full-grown beard]].
* PoeticSerialKiller: Dexter, every once in a while.
* PointyHairedBoss: Constantly flirted with in [=LaGuerta=]. She was promoted more for political reasons (in part her TwoferTokenMinority status) than for her skill, and is often shown to be more interested in her career than good policework. She starts showing much better judgment later in the series, but forfeits a lot of her sympathy after [[spoiler:blaming Debra for her own screwup]].
* PoorCommunicationKills: Doakes [[spoiler:finds proof positive that Dexter is the Bay Harbor Butcher by locating the blood slides in the air conditioner. He removes the evidence illegally and has it tested behind the department's back, thereby making it inadmissible in court, rather than alert anyone at the department about its existence to begin a legitimate investigation. Ultimately by keeping the department in the dark, they posthumously pin the murders on him]].
* PosthumousCharacter: Dexter's foster father, Harry. For the first two seasons, his only appearances were via flashbacks - scenes showing him grooming a younger Dexter to be a vigilante in order to slake his blood lust. From season 3 onwards, Harry is more of an ImaginaryFriend giving Dexter advice about following The Code.
* PragmaticAdaptation: The first season cuts out some of the more questionable plot elements while fleshing out the supporting cast and making Dexter more human.
* PrecisionFStrike: Dexter rarely swears, so when he does, it's jarring.
** When Doakes starts really messing with him, he's scary.
-->'''Dexter''': Back... the ''fuck''... off!
** He drops a small ClusterFBomb in 1x03. Apparently there are [[EvilDetectingDog Evil Detecting Alligators]] in Florida. Who knew.
** When Arthur finally shows Dexter that he knows exactly who he is, Dexter drops one in his internal monologue.
** The ending of 6x12, after a several discussions of Dexter's lack of religious faith, is followed by a revelation that surprising him. His reaction:
-->'''Dexter:''' Oh, God!
** Happens right at the end of an episode of Season 4 - Dexter had been awake for about 48 hours straight, and begins monolouging...
-->'''Dexter:''' After a beautiful night's sleep, everything will be better again.
-->*Harrison starts crying in the next room*
-->'''Dexter:''' ...Fuck. *cut to black*
** In 7x10, after chastising a killer on his table for blaming his murderous urges on a traumatic event that happened when he was a child.
-->'''Dexter:''' You're not a kid anymore. It's time for you to take responsibility.
-->*Dexter raises his knife, pauses.*
-->'''Dexter:''' Fuck.
* PreMortemOneLiner: Dexter has made this into an art form.
* ProductPlacement: Lots of it, most notably for José Cuervo Silver and Nokia.
* ProtagonistTitle
* PsychopathicManchild: Trinity sits down and plays with a train set, making choo-choo noises, much to the bewilderment of his captive.
* PsychoPsychologist:
** In a first-season episode one of Dexter's victims is a therapist who was driving his patients to suicide for kicks.
** Then there's Deb's terrible, terrible therapist in Season 6, who bizarrely encourages her to acknowledge and act on romantic feelings towards Dexter.
** Lila acts like this as Dexter's "sponsor" for his (non-existent) drug addiction in Season 2, by warping the Narcotics Anonymous 12 steps.
** Dr. Evelyn Vogel in Season 8 appears to be this as well. She is the author of the definitive textbook on profiling psychopathic killers, yet [[spoiler: is somehow intimately involved in Dexter's own formative past as one]]. Despite an austere warmth and wisdom, she appears very emotionless and unnervingly detached when discussing a case.
* PunBasedTitle: Several episode titles will probably have you groaning, especially the ones that integrate characters' names ("Dex, Lies, and Videotape," "There's Something About Harry," "Everything is Illumenated," etc.)
* PunkInTheTrunk: A dead stripper in a car trunk kicks off the main plot of Season 7.
** [[spoiler: Lumen]] is also an example of this at one point in season 5.
* PutOnABus:
** Partial example: Lundy for Season 3. Partial because As an FBI agent he was only in Miami to investigate the Bay Harbor Butcher, as soon as the case closed he would be gone. It was clear from the beginning his character would only last the season, it's actually a surprise that he's back for season 4.
** Lumen in the season 5 finale.
** Put in the back of a car: Astor and Cody, after [[spoiler:their mother died]], went to live with their grandparents in Orlando. They take a bus back from time to time - Astor twice (one episode centered around her), Cody once with getting face time only in one shot.
* PyroManiac: Lila.
[[/folder]]

[[folder:Q - T]]
* RageAgainstTheReflection: In the Season 5 finale, [[spoiler:when Lumen tells him that she needs to leave]], Dexter sees his reflection in a dinner plate he's holding.
* RapeAndRevenge: Basically Lumen's whole plan in season 5.
* RapeAsBackstory:
** Dexter mentions in the pilot episode that Rita's ex-husband repeatedly beat and raped her, presumably for years.
** Lumen is introduced as a kind of sex slave, and is ultimately revealed to have been repeatedly raped and tortured by five men for approximately a month.
** Emily Birch has a similar backstory to Lumen, but the future Barrel Gang's members didn't kill her.
* RapeIsASpecialKindOfEvil: Dexter is ''appalled'' by the crimes of the Barrel Girl Gang.
* RealisticDictionIsUnrealistic: Generally averted. Characters stutter, pause to think, et cetera. Some less than others, obviously, but it's still there.
* ReallyGetsAround: Debra becomes a serial monogamist after the first season, with roughly 5-6 bed buddies throughout the span of the series, in part due to the difficulty she has getting close to people and the demands of her job.
* RedHerring:
** Sonya the nanny from season 5 (played by Maria Doyle Kennedy from Showtime's ''TheTudors'') gets a pretty good amount of screen time and it seems as if she will eventually be important. She isn't.
** Louis Greene is seemingly set up as a major antagonist for Season 7. Suddenly, [[spoiler:headshot]]. A case of RealLifeWritesThePlot, as Louis' actor got another role and his arc subsequently had to be cut short.
** When Batista announces in season 7 that he is burnt out on detective work, then buys a restaurant and tells everyone he is retiring, it seems like an obviously telegraphed case of {{Retirony}}. It isn't; Batista is alive and well and retired from Miami Metro at the end of the season. He returns to his job in Season 8.
** Season 8 has multiple red herrings regarding the identity of the [[HiddenVillain Brain Surgeon]]. [[spoiler:The biggest one is A.J. Yates, whom Dexter identifies as the Surgeon and kills; it's not until ''three episodes later'' that we learn the real Brain Surgeon is still at large]].
* ReflectiveEyes: Lumen in Season 5 when she's watching her own rape/torture video. It is mercifully discreet.
* RescueRomance: Kind of with Dexter and Rita, since he's her refuge after her abusive relationship with Paul. Played straight with [[spoiler:Dexter and Lumen]].
* RetiredMonster: Santos Jimenez. Trying to come out of retirement does not go well for him.
* RightBehindMe: Deb has a problem running her mouth.
* RooftopConfrontation: With [[spoiler:Miguel]] in Season 3 and [[spoiler:Travis]] in Season 6.
* RoomFullOfCrazy: Lumen turns her motel room into a tragic version of one.
* RunningGag: Deb's [[ElSpanishO total inability to speak Spanish]], despite being a homicide detective in ''Miami.'' Babies who watch DoraTheExplorer know more ''en español'' than her.
* SadisticChoice: A brutal example in Season 7. [[spoiler: In the season's final minutes, Deb has to choose whether to apprehend or kill Dexter to protect [=LaGuerta=], or murder her to cover up Dexter's actions. Deb chooses to gun down [=LaGuerta=], and has an (albeit brief) emotional breakdown afterward]].
* SassyBlackWoman: Doakes' entire family, which consists of his mother and sisters. Deb gets along with them wonderfully.
* SarcasmFailure
* SarcasticConfession: Dexter, of course.
* ScareEmStraight: Dexter's father once took him to witness an execution by electric chair to show him the importance of following The Code. "Keep your wits about you, son, or this is going to happen to you."
* ScaryBlackMan: Doakes when he's angry, which is permanently.
* ScoundrelCode: The "Code of Harry" which allows him to uphold a measure of control over his SerialKiller tendencies.
* ScreamDiscretionShot: The tapes that the Barrel Girl killers made of them torturing their victims. Virtually nothing is shown (mercifully), but the screams are terrifying.
* SecretKeeper: In the books Deb finds out about Dexter's proclivities in the first book, and is the only one who knows who he truly is. In the show, Deb discovers Dexter doing away with Travis Marshall at the end of season six, and Dexter fails to kill Hannah [=McKay=], so both of them know about his secret.
* SerialKiller: Miami is lousy with them.
* SerialKillerKiller: Dexter, the whole point of the show.
* SerialRapist: Jordan Chase and his followers, the Barrel Girl Gang, from season five combine this with being {{Serial Killer}}s. He and his group capture, torture and rape women for months before finally disposing of them in barrels, hence their name. Notably, unlike other {{Big Bad}}s from the series, who are usually given something to humanize them, the show treats [[RapeIsASpecialKindOfEvil Chase and his accomplices like pure evil scum]]. Strangely, Chase himself by all indications didn't even directly participate in the nightmarish gang rapes that he orchestrated himself; instead he seemed to get off on the power he had over people by goading his buddies to brutalize his gang's victims and mentally torment the girls about how they were about to die.
* SeriesContinuityError: In Season 3 it is established that Miguel and Sylvia Prado are childless. In Season 8 Sylvia says she's focusing on the kids.
* SexEqualsLove: [[spoiler:Deb and Quinn]] in season 5.
* SexForSolace: In season 5, Debra has sex with Quinn after she breaks down crying, because she just had to clean up the blood-stained bathroom where [[spoiler:her sister-in-law]] was murdered.
* ShaggyDogStory: The dirty cop Stan Liddy spends Season 5 covertly gathering evidence on Dexter's crimes only to [[spoiler:get killed rather anticlimactically by Dexter]].
* SheIsNotMyGirlfriend: In "Teenage Wasteland", Dexter insists that Lumen is just a tenant. Though to be fair, she really wasn't his girlfriend at the time, but she was more than just a tenant.
* ShootTheShaggyDog: The entire 4th Season: [[spoiler: Agent Lundy's entire career and 4 years of Rita Bennett[=/=]Morgan; All Dexter's efforts to get close to Trinity in order to learn from him are wasted, as Arthur has nothing to teach him about raising a family. Frank Lundy will never receive public vindication, Deb will never get closure, and the FBI will [[ArsonMurderAndJaywalking waste innumerable man-hours]] because Trinity is already dead. Rita's efforts to build a loving home for her children and a happy life with Dexter fail, as 4 years of CharacterDevelopment are of little use when you are dead in a bathtub.]]
* ShoutOut:
** Dexter uses the name [[AmericanPsycho Patrick Bateman]] as an alias to procure tranquilizers. He states he chose it because it sounded "So wholesome, so inconspicuous."
** OpeningShoutOut on more than one occasion.
** There are a few references to the books in the season four finale: Dexter driving like crazy in Miami traffic and extra emphasis on the moon.
** The shot down the hotel room leading to a bloodbath in Season 1 is a pretty obvious (though effective) reference to Film/TheShining.
** "Dexter? He spends all his time in a [[WesternAnimation/DextersLaboratory laboratory]] for God's sake!"
** In Season 1, Rita shows up at Dexter's apartment on Halloween in a [[Franchise/TombRaider Lara Croft]] [[FanService costume]].
** In Season 5, after concluding that the Barrel Girl Gang members are being killed by a pair vigilantes in love, Dexter and Lumen, Masuka compares them to Bonnie and Clyde. Considering how they ended up, Dexter finds the analogy worrisome.
** The title of Season 6 finale "This Is the Way the World Ends" is both a nod to the apocalyptic delusions of the BigBad and a Shout Out to Creator/TSEliot.
** In the season seven finale Dexter uses [[ComicBook/{{Aquaman}} Arthur Curry]] as a phony name.
* SingleTear: Brian lets one out when Dexter makes up his mind [[spoiler:to kill him to protect Debra]].
* SirSwearsalot: Debra. While most of the cast swears pretty liberally, in one conversation with Dexter in the third season, she manages to use every single obscenity in the English language, excluding racial slurs.
* SoBeautifulItsACurse: Debra (on the series) and Deborah on the books, more realistically, since her beauty gets her trapped as a DirtyHarriet in Vice at the beginning.
* SociopathicHero: Pretty much the premise of the series.
* SorryThatImDying
* SoundtrackDissonance: Subverted, as Dexter beats up an abusive parent while a cheerful-sounding Spanish song plays. It's [[Theatre/TheThreepennyOpera Mac The Knife in Spanish]].
* SparedByTheAdaptation: In the first book, [[spoiler:[=LaGuerta=] was killed by Brian Moser]], but survived the first season (which was based on the book) and went on to appear in subsequent seasons. [[spoiler:Until her death in Season 7 under completely different circumstances]].
* SpiritualSuccessor: To the [[TheSilenceOfTheLambs Hannibal Lecter]] series.
* TheSponsor: Lila in season 2, though she is initially unaware of just what Dexter is ''actually'' addicted to.
* StabTheSalad: Used frequently, which is unsurprising with this show being what it is. Outside the opening sequence, the most notable examples are the opening scenes for the second, third, and fourth seasons.
* StepfordSmiler:
** Dexter puts on a cheerful facade while internally lamenting his hollowness.
** Arthur Mitchell's family has elements of this. Despite being very messed up, they project an image of wholesomeness to the outside world that initially fools Dexter even when he's ''looking'' for signs of dysfunction.
* StockholmSyndrome: Emily Birch for Jordan Chase in Season 5.
* AStormIsComing: The series finale coincides with a tropical storm gathering over Miami and the concern about it starts in the penultimate episode.
* SuicideIsShameful: Debra, thinking [[spoiler:the Skinner]] jumped to his death to avoid arrest, says he 'took the chickeny way out'.
* SureLetsGoWithThat:
** When confronted about certain of his possible activities, Rita assumes Dexter is a drug addict rather than a serial killer. Dexter enthusiastically goes with the deception, and it turns out to be useful on several other fronts as well. Because his homicidal tendencies are very much an addiction, his NA speech is very convincing.
** Happens in the season 6 premiere:
-->'''Dexter:''' It'd be good to catch up with some of the old friends..
-->'''Debra:''' .. You're hoping to get laid.
-->'''Dexter:''' You got me.
** In Season 7, Dexter frustratedly blurts out his desire to kill Hannah:
-->'''Dexter:''' I want to take you out.
-->'''Hannah:''' On a date?
-->'''Dexter:''' ...That'll work.
* SympatheticInspectorAntagonist: Sergeant Doakes.
* SympatheticMurderer: Dexter himself.
* TalkingThroughTechnique
* TakeThat: In the episode "Let's Give This Boy A Hand," Cody is shown wearing a George W. Bush mask while Dexter narrates "People think it's fun to pretend you're a monster."
** There is usually one blink and you miss it segment per season showing that the villains are either Republicans or leaning that way. Season 4 has Trinity tell a woman his parents were lifelong Republicans, while Season 5 had the guy driving some loaded barrels listening to seemingly conservative talk radio.
* TapOnTheHead: Dexter whacks Paul over the head with a frying pan after he threatens Rita and the kids. Paul survives with only a slight skull fracture (a slight subversion) despite having had no medical attention and then being shot up with heroin.
* TattooedCrook:
** Dexter's biological father had a prison tattoo, not to mention plenty of the people Miami Metro drags in.
** Zig-zagged with Quinn, who sports tattoos, is a cop, and has stolen from a crime scene.
** And one of Dexter's victims early in the series - a valet who liked snuff films.
* TerribleIntervieweesMontage: While searching for a Nanny for Harrison.
* ThatCameOutWrong: To [=LaGuerta=].
--> '''Dexter''': "If you need something under the table, I'm your guy...That didn't come out right."
* ThemeSerialKiller:
** The Ice Truck Killer chops up prostitutes and leaves their parts scattered [[spoiler: because he watched while his mother - and, by extension, Dexter's - met the wrong end of a chainsaw at the hands of drug dealers]].
** The Trinity Killer, who kills people in ways that mimics how his sister, mother and father died, although it turns out [[spoiler:that [[NonIndicativeName his nickname is non-indicative]]. He actually kills in fours, starting every cycle with kidnapping and killing a boy, who is supposed to represent himself]].
** The Doomsday Killer kills his victims based on his interpretation of the Literature/BookOfRevelation. He believes that if he can complete the sequence on a certain day, he will bring on the Apocalypse.
* ThirdActStupidity: In the penultimate episode of Season 8, Dexter [[spoiler:captures BigBad Oliver Saxon but, instead of doing the practical thing by just killing him, decides to leave him to Deb. So, of course, Saxon ends up shooting Deb and escaping]].
* ThirteenIsUnlucky: Lumen, meant to be the thirteenth Barrel Girl, brought very bad luck indeed.
* TitleSequence: An [[http://www.artofthetitle.com/2008/04/14/dexter/ award winning]] title sequence.
* TogetherInDeath: Dexter takes a dying [[spoiler:Isaak]] to where he dumped [[spoiler:Viktor]] so they can have a semblance of this.
* TookALevelInBadass: Dexter, starting in the latter half of season 2.
* TookALevelInJerkass: Quinn in the sixth season. He had already stolen from a crime scene earlier in the show, but he rapidly spirals out of control after Deb rejects his proposal and says that she never really loved him. He starts getting drunk, neglecting his job and acting like a total douche to everyone. His negligence almost gets his partner killed. The only reason he doesn't get fired is that he exploits a loophole intended for alcoholics.
* TheTopicOfCancer:
** Debra and Dexter's mom died of cancer when they were teenagers. Debra once says she can't visit Camilla, their family friend, because her suffering would remind her of her own mother too much and she thinks she could not cope.
** Camilla and her husband were friends of Harry Morgan (Dexter's father). They have been heavy smokers all their life. Camilla is already widowed in season one. In season three, she's dying of lung cancer and in excruciating pain. She wishes to die soon to cut short her suffering.
* TotalEclipseOfThePlot: Season 6 finale "This Is the Way the World Ends".
* TrailersAlwaysLie:
** Trailers for the Season 5 ending showed Debra pointing a gun at what appears to be a bloodied Dexter. What they omitted was the plastic covering standing between the two, meaning all Debra saw was silhouettes. She did not even suspect it was Dexter.
** Another example was the trailer for an episode earlier in the season, which showed Dexter chasing an escaped victim, apparently followed by a shot of a surprised Deb in the same location saying, "Dexter?" In the actual episode these two shots happened about five minutes apart, giving Dexter just enough time to kill the victim and quickly conceal his own involvement.
* TranquillizerDart: Dexter usually uses a syringe of M99 animal tranquilizer, which really does work that fast. It also causes significant damage to the kidneys and frequently stops hearts, but his victims won't be alive for much longer anyway. In Season 5, however, victim Boyd Fowler manages to shoot Dexter with an actual tranquilizer gun before going down.
* TropaholicsAnonymous: Dexter goes into Narcotics Anonymous after he covered up his strange behavior (related to his serial killing) by [[SureLetsGoWithThat telling his girlfriend he was a addict (she assumes it's heroin)]]. The therapy ended up reaching over into his desire to kill, but also sets him up with an enabler. And causes him to meet a hot EeriePaleSkinnedBrunette whose [[IntimateHealing supportive sexual relationship]] actually keeps him clean for much of the season.
* TVTelephoneEtiquette: Debra does this a lot. In Season 6, she ended a phone call with Batista with just a "got it." Click.
[[/folder]]

[[folder:U - Z]]
* UndercoverWhenAlone: In season 2, Laguerta is scheming to get her superior fired by pretending to be her friend when she's having marital difficulties. However, when a fight between her superior and her superior's fiance occurs while Laguerta is in the office, Laguerta curses to herself (before shes spotted by them). Given the later reveal that she orchestrated the fights between the two, this was perfectly according to her plan.
* TheUnfairSex:
** Poor Angel falls victim to this in Season 5. [[spoiler: He thinks Maria is cheating on him, but she's actually doing an undercover sting operation. Of course Angel gets yelled at for not trusting her when she goes sneaking around late at night and makes up clearly fake excuses as to why]].
** Maria plays it straight, but the show subverts it, [[spoiler: since the viewer is led to believe that she really ''was'' cheating on him, even if only to get the case against him dropped and save him from jail time]].
* UnreliableNarrator: Dexter narrates his story, but he does so through a filter of his own biased perceptions. One notable example is Dexter's constant assertions that he has no emotions and is a complete monster. As the series progresses, we see that he does have emotions, a conscience, and cares for the people around him in spite of the relentless bloodlust he also experiences.
* UnspokenPlanGuarantee:
** If a good amount of screen time is spent on Dexter preparing for a kill--or if his narration outright tells us his detailed plan--you can bet that something will go wrong. Just ask Boyd Fowler, Ray Speltzer, Oliver Saxon, etc.
** Dexter's plan to [[spoiler:leave for Argentina with Hannah and Harrison]] near the end of Season 8. He discusses or narrates about it so damn much that it's basically guaranteed to fall through. Sure enough, [[spoiler:only Hannah and Harrison make it to Argentina]].
* UnstoppableRage: For a guy that appeared in only one episode, Rankin sure managed to really piss Dexter off. An emotionally confused Dexter with an anchor doesn't go well with a disrespectful angry dude, seeing as Dexter's rare moments of anger can make him completely disregard The Code.
* VampireDetectiveSeries: Dexter isn't technically a vampire, but he's obsessed with blood and kills only at night, so we'll take it. He fits all the requirements for the Vampire Detective Series except #4. (1) He is a cop (a ''blood'' analyst) (2) wants to be normal and (3) has a lot of daddy issues (his are 75% positive but it's a big deal). His daddy made him what he is, too. He (5) has lots of flashbacks about his earlier life, and he (6) only kills other killers. He fits even #4 after the Lumen story arc.
* VariationsOnAThemeSong: In the Season 4 opener, the normal sequence of Dexter preparing his day along to the theme song is replaced with a much more drowsy and disjointed sequence to represent his exhaustion at this point in the story.
* VertigoEffect: Used in the second episode of season 8, when Dexter finds a match for a blood sample.
* VictimOfTheWeek: Played straight in the first two seasons.
* VideoGameCrueltyPotential: Louis Greene develops a video game where you get to play a serial killer and wants Dexter's opinion on whether the blood spatter mechanics are realistic. Dexter refuses to even look at the game and tells Louis that making that type of game is just wrong.
* VigilanteMan
* VillainProtagonist: Dexter is a bit more heroic than most examples of this trope and even has [[AntiVillain redeeming qualities]] (his love for his family, friends, and coworkers), but he still qualifies. Although he [[SerialKillerKiller kills other killers]], he does it primarily for the wrong reasons, to satisfy his own bloodlust. No matter how well he rationalizes it to himself (and the audience), he has tampered with evidence to let guilty men free, killed innocent people, and indirectly caused many innocent deaths because of his "hobby".
* VillainWithGoodPublicity: Miguel Prado and Jordan Chase. Also Dexter Morgan, especially from Sgt. Doakes' point of view.
* VillainousBreakdown:
** Miguel Prado has one when he realizes that Dexter killed his brother Oscar [[spoiler:as he's already lying on Dexter's table]].
** Jordan Chase becomes slowly more unhinged as Dexter and Lumen kill all of his "rape buddies" and elude capture. When they have him on a table, he loses it completely.
** Happens quite frequently when Dexter captures any [[VictimOfTheWeek Victims of the Week]].
* VomitIndiscretionShot:
** Harry in the flashback near the end of "There's Something About Harry."
** Deb in "Sunshine And Frosty Swirl" after learning some very unpleasant news.
* WellDoneSonGuy:
** Debra Morgan had this kind of relationship with her father Harry, even following in his footsteps as a cop to gain his attention. It's not that he wasn't proud of her, but honing her brother Dexter's [[SerialKillerKiller extra-curricular activities]] (to which Deb wasn't invited for obvious reasons) meant that he couldn't spend as much time with his daughter.
** Likewise with [[spoiler:Christine Hill]], the daughter of [[spoiler:Arthur Mitchell/Trinity]]. She even killed [[spoiler:Frank Lundy]] to gain her father's approval. After she accidentally put him at risk of being discovered, he disowns her. [[DrivenToSuicide She doesn't take it well]].
** Dexter, too. Everything was to live up to Harry's expectations. When he realizes that a) Harry was using him as an outlet for his own vigilante impulses and b) Harry was deeply revolted by what he'd made him into, to the point of suicide, he...takes it pretty hard.
* WellIntentionedExtremist: Miguel Prado seems extreme when compared to Dexter. And perhaps Dexter himself is an extremist when compared to Doakes.
* WeWantOurJerkBack: After Quinn tells Masuka that the reason nobody came to his speech on his newly-published work is because of how perverted he is, he starts dressing nicely and cleans up his act. This freaks out Debra immensely. It's only after they stand up for him in front of Miguel's brother that he eventually returns to his normal self.
* WhamEpisode:
** Season 4 episode 9, arguably. There were hints of Arthur's mask slipping before, but this time you get to see how messed up his family life really is.
** The Season 4 finale.
** The Season 6 finale. Ooh boy...
** And the Season 7 finale too.
** Season 8's ''A Little Reflection'', Dexter and Debra are chatting over the happenings in the episode ([[spoiler:mostly the fact that Dexter would be taking on rich teen SerialKiller in the manner of Harry]]) when [[spoiler:they both start to feel dizzy and before Dexter passes out, he sees that [[WhamShot Hannah's back]].]]
* WhamLine:
** A pretty minor one but clearly one that sets up a story arc: [[spoiler: "Boyd wasn't the only one"]].
** In "Hungry Man," Christine talking to [[spoiler:Trinity]] at the end: [[spoiler:"Hi, Daddy."]]
** [[spoiler:The Season 7 Premiere:]]
-->'''Debra''': [[spoiler:"Did you kill all these people?"]]
-->'''Dexter''': [[spoiler:"...I did."]]
-->'''Debra''': [[spoiler:"Are you...Are you a serial killer?"]]
-->'''Dexter''': [[spoiler:"...Yes."]]
** [[spoiler:The Season 8 Premiere:]]
-->'''Vogel''': [[spoiler:"You can't kill me."]]
-->'''Dexter''': [[spoiler:"Why not?"]]
-->'''Vogel''': [[spoiler:"I'm not part of Harry's code."]]
** ''A Little Reflection''
-->'''[[spoiler:Hannah]]''': [[spoiler:"Hi, Dexter, remember me?"]]
** From 8x10:
-->'''Saxon''': "Mother chose the wrong son." [[spoiler: before he slits Dr. Vogel's throat]]
* WhatHappenedToTheMouse:
** In the first episode of the series, it's both shown and mentioned how [=LaGuerta=] has a romantic interest in Dexter. It's never mentioned again. (This was a plot point from the first "Dexter" book, which the show dropped.)
** Angel's interest in vague mysticism in season two was quietly dropped before his character came to the fore.
** Rita's teenage marriage is introduced as if it will be a major plot point. Then it's forgotten.
* WhatIfTheBabyIsLikeMe: Of course, it's too early to tell how Harrison's going to turn out.
* WhoNamesTheirKidDude:
** Liddy snarks about what a stupid name "Dexter" is, as does Quinn even earlier.
** Several people remark that "Lumen" is a weird name.
** Dexter himself does this to "Miles" Castner.
* WouldntHurtAChild: Dexter takes a special interest in those who harm children.
* WoundedGazelleGambit: Both Lila and Dexter use this tactic in season 2, Lila to gain sympathy from Dexter, Dexter to make it look as if Doakes simply has an unreasonable and irrational hatred of him.
** Not that it took much work, as everyone already could see that Doakes clearly hated Dexter well before he had a reason to.
* WorthyOpponent:
** Dexter explicitly calls Lundy this, and views some of the various seasons big bads to be this. The barrel girl gang are a notable exception, Dexter is simply appalled by their actions.
** Trinity considers Lundy one and refuses to harm him since he ''wants'' [[TheOnlyOneAllowedToDefeatYou to be caught by him]].
** Isaak Sirko considers Dexter [[NotSoDifferent an equal]] and holds him in high esteem.
* WrongGenreSavvy: In season 6 Dexter thinks he understands what type of killer Gellar is and how to best get to him. Turns out that he completely misinterpreted the situation and is in fact in a completely different serial killer story. It puts him in serious danger and gets multiple people killed.
* {{Yandere}}: Lila.
* YouMonster: This is a prominent theme in the series. The SerialKiller protagonist Dexter Morgan directs this at ''himself'', considering himself a monster because he's compelled to murder. He has managed to cope all this time by only [[SerialKillerKiller killing other killers]]. He claims that what sets him apart from them is that he is aware of this fact (which they are not), and the code he lives by. He calls them "unchecked versions of myself" and often refers to them as monsters as well.
-->'''Dexter:''' [to George King aka "The Skinner"] Oh I have my excuses and justifications, but really I just... need to. Like you. You have your excuses, finding Freebo, getting your money. But you know he's dead. You know there's no money, so really you're just... a killer. A monster. The stuff of nightmares.
-->'''Dexter:''' [to Arthur Mitchell aka "The Trinity Killer"] You were a very special kind of monster. You destroyed your own family.
[[/folder]]

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->''[[TearJerker I love you, Deb.]]''
->''([[spoiler:{{flatline}}]])''
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