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Castle is a series that is currently running and has 8 seasons (174 episodes). The series first aired on March 9, 2009.
Where do I stream Castle online? Castle is available for streaming on ABC, both individual episodes and full seasons. You can also watch Castle on demand at Amazon, Vudu, Microsoft Movies & TV, Google Play, iTunes online.
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Castle Full Episode Guide
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With their best lead in hand, Castle and Beckett are ready to take on LokSat. But an unforeseen twist puts their case – and their lives – in jeopardy.
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A psychiatric prisoner escapes and falls dead in Castle's PI office, and the examination that follows has Castle surmising the Antichrist could take a part.
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After a movie star turned theater actor is mysteriously killed, Castle and Beckett go backstage and learn the star had more to worry about than just his lines.
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When Hayley finds herself being implicated in a cyber-terror attack after doing an old friend a favor, Castle and Beckett rush to clear her name.
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The murder of a man connected to smuggling Turkish relics sends Castle, Beckett and the 12th Precinct on a search for a stolen antique believed to be Aladdin’s lamp, in hopes that it can lead them to the killer.
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When a recruit officer at the NYPD Academy is killed, Beckett and the team go back to their old training ground to investigate. Meanwhile, Castle must reckon with a decision with profound consequences for him and Beckett.
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Castle returns to the City of Angels in search of answers about his missing time. But things take a deadly turn when he's recruited by the legendary Greatest Detective Society to help solve a murder.
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Beckett and the 12th Precinct investigate the killing of an E.S.L. student. When the victim's class won't agree to talk to the police, Castle goes covert as a French Canadian immigrant and discovers that the victim was more than he seemed.
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Castle is kidnapped and has to solve twisted puzzles and mind games with unfamiliar people; Beckett and the 12th precinct fight to rescue Castle.
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The son of a Russian diplomat is killed; while investigating, Castle accommodates a cheery Russian security guard, who ends up having more to to with the case than previously presumed.
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Castle finally gets his day in court when he takes the stand as the key witness to a murder from five months ago. But when new information suddenly arises, he and Beckett must race against the clock to prevent a miscarriage of justice.
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A dead body is discovered in the theater of Martha's current show. Castle and Beckett's inspection opens their eyes to the shockingly dangerous world of cutthroat a capella.
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When Castle and Beckett inspect the killing of a cruise ship entertainer, the get stuck on the ocean with the killer.
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Castle and Beckett have to investigate New York's high-class so that they can discover the ruthless murderer of a wrenching seducer. In the meantime, Castle contrives to astonish Beckett on their anniversary.
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Detective Slaughter comes back to seek Castle's aid in solving a high-stakes burglary case. But when a dead body is connected to the crime, Slaughter is placed as the head suspect, while Castle must decide whether Slaughter is guilty or help to show he's innocent.
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Castle and Beckett seek help from a key witness to find a snatched painting and the killer who stole it.
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Castle decides to solve the murder of an author who admired him.
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When a college frat student is brutally murdered, Castle goes undercover as a professor to investigate. Castle and Beckett uncover some evil secrets the university doesn't want anyone to know about.
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Beckett battles for her life a group of hired fighters. Castle is trying to figure out who his wife is fleeing from.
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Castle and Beckett are adapting to Beckett's career change. A phone call from someone unknown starts a series of strange events.
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Bonus "Cool Boys" episode with special audio commentary from Nathan Fillion and Adam Baldwin. Slaughter returns to enlist Castle's help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he's guilty or help to prove he's innocent.
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While investigating a death that occurred in the woods, Castle remembers a traumatic event from his childhood.
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The creator of a sketch-comedy show is murdered, and surprising secrets are discovered.
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Castle and Alexis fly to London but their plans are interrupted when an air marshal is found dead. They ask Beckett to help them find the murderer.
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A recurring dream causes Castle and Beckett to try and find some answers about Castle's disappearance.
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Beckett and Castle investigate the many clients and competitors who had motive to kill Richie "The Pitbull" Falco, a personal-injury attorney.
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While Ryan is on assignment at a charity event, shots are fired at a politician. Ryan works with Castle and Beckett to catch the shooter.
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An ambitious detective with information on a murder victim comes from Hong Kong to help Castle and Beckett. Beckett soon learns that there may be secrets about this detective and the victim.
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An astronaut dies in a Mars simulation. A surprising and unexpected discovery is made, changing the direction of the investigation.
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Castle and the detectives try to outsmart 3XK and Kelly Nieman.
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A young woman's murder could implicatess Dr. Kelly Neiman based on some evidence found.
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Castle's client hires him to investigate her husband's fidelity, but things change when Castle witnesses his client being murdered by her husband.
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An actress on a telenovela is killed, so Beckett's team investigate and find the case to be as beguiling as the victim's show.
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After being banned from the precinct, Castle works his first case as a P.I.
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Castle and Beckett discover that an ER doctor who was shot in the street was a mob doctor.
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A famous action star from the 80's is found murdered.
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Esposito finds himself amongst some subway passengers who are taken hostage by a mysterious gunman.
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Castle and Beckett pretend to be newlyweds at an Old West resort to try and find out more about a possible poisoning homicide.
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Castle investigates a murder and somehow ends up in an alternate universe where he's never met Kate Beckett.
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Castle and Beckett investigate the murder of a well known internet star. They find photos posted by the killer of the crime committed.
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An unknown child may be able to help identify the person who shot an ice cream vendor.
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Castle and Becket discover evidence for a case of a shark being killed by unseen forces. They wonder if the killer has paranormal powers.
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While the team investigates the murder of a toy company CEO, Castle uncovers a lead to his mysterious disappearance, launching him into a dangerous investigation of his own.
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Beckett works on her hardest case yet, dealing with a car accident.
Castle News
Is Nathan Fillion, star of "Castle," the nicest guy ever? Quite possibly, judging by this picture of a card that Fillion was handing out to fans at Comic-Con. Check it out here.
