Watch Season 3 Full Episodes Online
Beckett learns key intel regarding her mother's murder on this episode. Read on for a recap of the season finale.
During a rehearsal for "Baron's All-American Beauty Pageant," the contestants find the dead body of Miss Illinois! Castle and Beckett must dive into the world of cut-throat beauty contest competiti...
Her ex-partner's death leads Beckett to Los Angeles on this episode of Castle.
When a champion swimmer is found dead in a training pool, Castle & Beckett dive in to investigate his murder, and uncover myriad secrets.
A reporter is found dead this week, in a most unusual way: inside a pizza over. Beckett and Castle investigate.
A juror died during a high profile case this week. Turns out, the individual was poisoned. Get on that case, Castle and Beckett!
Castle takes on the world of soap operas this week. A number of stars from actual daytime dramas stop by for cameos.
Time is running out for Castle and Beckett this week. They must put aside any differences with Agent Fallon and, simply put, save the city.
Adrian Pasdar debuts on Castle this week, playing a federal agent. He's brought in to take over the investigation of a massive conspiracy.
Jason Wiles guest stars this week as a former friend of Castle's… and the main suspect in a case. This places Castle and Beckett on opposite sides of the investigation.
A lottery winner is killed in brutal fashion this week, resulting in a number of suspects. In related news, Martha inherits money she thinks she doesn't deserve.
The lead detective on Beckett's mom's murder cases resurfaces this week. A subsequent investigation leads back to a decades-old conspiracy.
Carrie Genzel guest stars on this episode of Castle. She portrays a former model and the wife of a billionaire. Gilles Marini also plays a key role.
Laura Prepon shows up on this special episode of Castle. It focuses on Castle's book and the actress that will help bring it to the big screen.
A body is found floating in the East River on this episode, which leads Castle and Beckett into old tunnels and passageways of New York City. Once there, the partners find a secret from the days of...
An astrophysicist is found dead this week, leading to a case that keeps pointing back to the impossible: alien abduction. Lyle Lovett guest stars.
A subway worker is found dead shot to death this week. While working this case, Castle and Beckett uncover the violet abduction of a young boy and must unravel the motives behind this kidnapping.
Beckett and Castle respond to an "officer down" call this week and are in for a surprise: the victim is actually a male stripper dressed as a cop. Hot stuff!
Is the Tripler Killer back after a four year hiatus? It seems that way this week, as Castle and Beckett play a dangerous game of wits with the murderer.
Pallbearers lose control of a casket this week, causing an extra body to somehow tumble out. Rick and Castle must then look into the murder of a doctor, while Gina bonds with Alexis.
Castle and Beckett look into the murder of a young mathematician this week. He was murdered with a 200-year-old bullet, which leads to thoughts of a time-traveling culprit.
Might Castle's unusual theory pan out this week? Beckett must consider the possibility. Elsewhere, her former partner returns. Might things turn romantic?
Our favorite duo investigates the murderer of a well-known psychic this week, while also debating whether extrasensory abilities are valid or not. A written letter also plays a key role.
Castle as a murder suspect?!? That's how season three kicks off, as Beckett starts the episode having not seen her partner in awhile, only to later arrest the author.
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