Dexter
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130 free Dexter trivia questions with answers — entertainment quiz, new questions added Oct 2026.
50 free Dexter trivia questions with answers. Are you a true Dexter fan? Put your knowledge of Miami's favorite blood spatter analyst to the test with our challenging trivia quiz. From Dexter Morgan's twisted code to the show's most shocking plot twists, see how much you really remember about this iconic crime drama.
30 of 130 questions with answers and explanations. Play the quiz
Q 01What is Dexter Morgan's professional occupation at Miami Metro Homicide?
Blood Spatter Analyst
Blood Spatter Analyst: the forensics job puts Dexter at murder scenes and inside police case files, which is how he finds the killers he hunts at night.
Q 02Dexter's biological mother was murdered because she had secretly been doing what?
Informing for the police
Informing for the police: she passed Harry tips on a drug gang while the two were having an affair, and after her murder he adopted her younger son, Dexter.
Q 03What is the real name of Dexter's biological older brother, who resurfaces as a killer in season one?
Brian Moser
Brian Moser, alias Rudy Cooper, was Dexter's older brother; both boys witnessed their mother Laura Moser's murder, but only Dexter was adopted, and Brian spent years in institutions.
Q 04What does Rita tell Dexter early in season three that leads him to propose?
She is pregnant
She is pregnant: his first, businesslike proposal falls flat, so he wins her over with a declaration of love he borrows from a murder suspect.
Q 05Who was the primary antagonist in the first season of Dexter?
The Ice Truck Killer
The Ice Truck Killer drained his victims' blood and cut them up in a refrigerated truck, a clean, bloodless method that fascinated Dexter instead of repelling him.
Q 06Which serial killer is the main antagonist of Dexter's fourth season, known for repeating a strict cycle of murders?
The Trinity Killer
The Trinity Killer was named for murders that seemed to come in threes, until Dexter found a hidden fourth victim opening every cycle that the FBI had missed.
Q 07In season eight, to which country does Dexter plan to flee with Hannah and his son?
Argentina
Argentina: Dexter books flights to Buenos Aires for Hannah, his son and himself, but Hurricane Laura and a last confrontation with Saxon intervene, and he never boards.
Q 08What does Harry teach Dexter is the number one rule of his Code?
Don't get caught
Don't get caught came first because, as Harry told him, every other rule existed to serve it; never killing an innocent was only rule two.
Q 09On which holiday does Dexter nearly kill Arthur Mitchell in his own kitchen?
Thanksgiving
Thanksgiving dinner at the Mitchells' ends with Arthur half-strangling his own son, and Dexter dragging him off with a belt and very nearly killing him on the spot.
Q 10What is the name of the boat Dexter uses to dump his victims' remains at sea?
Slice of Life
Slice of Life carries the weighted bags out to sea; when divers stumble on his underwater dumping ground in season two, the hunt for their killer starts in Dexter's own department.
Q 11Under the alias Rudy Cooper, the villain of Dexter's first season works in which field?
Prosthetics
Prosthetics: he met Debra while fitting an artificial hand and leg for a victim he had maimed himself, then dated her to get close to Dexter.
Q 12Which Dexter season's finale became Showtime's most-watched original episode when it aired in 2009?
Four
Four: 'The Getaway', the finale that ends with Rita's murder, became Showtime's most-watched original episode, beating a record its own previous episode had set a week earlier.
Q 13Dexter's opening title sequence begins with him swatting which insect?
A mosquito
A mosquito, a fellow blood-drinker, is the first thing viewers see Dexter kill each week; he swats it and gives the hint of a satisfied smile.
Q 21Which Miami Metro sergeant distrusted Dexter from the start and eventually found his box of blood slides?
James Doakes
James Doakes was right about Dexter all along, but died in a cabin explosion before he could prove it and was blamed for Dexter's murders himself.
Q 22Who becomes Dexter's lover and fellow vigilante in Season 5?
Lumen Pierce
Lumen Pierce, played by Julia Stiles, watched Dexter kill her captor Boyd Fowler, then asked him to help her hunt down the rest of the men who had held her.
Q 23From which part of a victim's body does Dexter take his blood trophy?
The cheek
The cheek: one nick with a scalpel gives the drop he seals between two glass slides; the box of them later turned up in a colleague's car and pinned his murders on the wrong man.
Q 14What does the press call Dexter's unknown alter ego after divers find his victims in season two?
The Bay Harbor Butcher
The Bay Harbor Butcher was named for the waters where divers found bags of body parts, and Dexter ends up working the forensics on the hunt for himself.
Q 15Which season 2 character became Dexter's Narcotics Anonymous sponsor and then his lover?
Lila Tournay
Lila Tournay was a pseudonym: a background check ordered by Debra showed the English artist was really Lila West, living in the United States on an expired visa.
Q 16What does Dexter regularly bring in to Miami Metro to keep up his friendly, harmless image?
Doughnuts
Doughnuts are part of the mask: Dexter hands them round the station so that colleagues file him under 'the doughnut guy' and never look any closer.
Q 17Which actor won an Emmy and a Golden Globe for playing Arthur Mitchell, Dexter's season four nemesis?
John Lithgow
John Lithgow, long known as the goofy alien patriarch of the sitcom 3rd Rock from the Sun, won both awards for one season as the outwardly gentle family man.
Q 18What name does Dexter give the urge to kill that he feels living inside him?
The Dark Passenger
The Dark Passenger is how Dexter pictures his compulsion, as something riding inside him; in the third novel it turns out to be a literal being with a mind of its own.
Q 19Which crude-humoured lab tech, played by C. S. Lee, is Dexter's main comic relief at Miami Metro?
Vince Masuka
Vince Masuka was promoted to the title credits in season two and later discovers he has an adult daughter he never knew about.
Q 20Where in his apartment does Dexter hide his box of blood slides?
An air conditioner vent
An air conditioner vent kept the box safe until a suspicious colleague broke in and took it in season two, which is how the slides ended up as evidence against the wrong man.
Q 24Who is the main antagonist of Dexter's sixth season, known for his religiously motivated murders?
Travis Marshall
Travis Marshall ends the season on Dexter's table in an abandoned church, where Debra walks in at the moment of the kill and finally sees what her brother is.
Q 25Hannah McKay, Dexter's lover in season seven, runs what kind of business?
A plant nursery
A plant nursery she inherited from the mentor who trained her; she later fell under suspicion of having poisoned that mentor with one of the plants.
Q 26Which veteran Miami Metro captain, played by Geoff Pierson, was an old friend of Dexter's adoptive father?
Tom Matthews
Tom Matthews had given Harry his word, the day before Harry died, that he would watch over Dexter and Debra, and he kept it for the rest of his career.
Q 27In Dexter's pilot, what does a rival killer leave in his freezer as an invitation to play?
A dismembered doll
A dismembered doll, cut up and bloodless like the killer's real victims, with its head stuck to the fridge door; Dexter reads it as a friendly hello and is delighted.
Q 28Which FBI agent, played by Keith Carradine, leads the season 2 manhunt that comes close to exposing Dexter?
Frank Lundy
Frank Lundy fell for Debra during the manhunt, then returned in season four, retired but still chasing the one killer who had always escaped him, and was shot dead at her side.
Q 29Which assistant district attorney befriends Dexter in season 3, then turns to murder himself?
Miguel Prado
Miguel Prado, played by Jimmy Smits, was the first friend Dexter ever let in on his secret; when he began killing on his own account, Dexter had to kill him.
Q 30What alias does Dexter use in season 4 to befriend Arthur Mitchell and his family?
Kyle Butler
Kyle Butler became the FBI's only lead once Arthur Mitchell vanished, and in season five a suspicious detective noticed how closely the sketches of 'Kyle' resembled Dexter.