World famous mystery writer Richard Castle finds unexpected inspiration when Detective Kate Beckett questions him about a series of murders that based on his books.

The New Coach
Watch Castle Season 6 Episode 3
"Need to Know"
Original Air Date:

The murder of a former teen star from a '90s high school sitcom takes a strange turn when Beckett and McCord arrive at the 12th to take over the case and find a new detective at Beckett's desk on Castle.

Scrambling to Save Castle
Watch Castle Season 6 Episode 2
Original Air Date:

With Castle's life on the line and a stolen toxin threatening thousands of people, Beckett and McCord scramble to stop a terrorist attack and save Rick's life on Castle.

Stana Katic and Nathan Fillion
Watch Castle Season 6 Episode 1
Original Air Date:

Will she or won't she? We learn Kate's response to Rick's major question on the Castle Season 6 premiere.

Castle Season 5 Finale Photo
Watch Castle Season 5 Episode 24
Original Air Date:

Beckett reconsiders what she wants out of her job, and out of her relationship, in the Season 5 finale of Castle.

Carlos Bernard on Castle
Watch Castle Season 5 Episode 23
"The Human Factor"
Original Air Date:

Why are federal agents trying to take over a case? That's the question on Castle this week.

Cute Castle
Watch Castle Season 5 Episode 22
Original Air Date:

Beckett's life is on the line on this episode of Castle after she steps on a bomb. Uh-oh!

Ryan and Castle Scene
Watch Castle Season 5 Episode 21
"The Squab and the Quail"
Original Air Date:

Beckett is assigned to protect a billionaire on this episode of Castle, which prompts her to reflect on her relationship.

Something Amiss
Watch Castle Season 5 Episode 20
"The Fast and the Furriest"
Original Air Date:

When a dead woman is found with claw like slash marks, Rick wants to believe Big Foot is the culprit on Castle.

A Bored Castle
Watch Castle Season 5 Episode 19
"The Lives of Others"
Original Air Date:

Rick goes stir crazy when he's stuck at home and thinks he witnesses a murder in another apartment on Castle.

Kevin Ryan Photo
Watch Castle Season 5 Episode 18
"The Wild Rover"
Original Air Date:

We learn a lot more about Ryan on this episode of Castle, as the detective goes undercover.

Mystery writer Richard Castle is mired in a case of writer's block after killing off the main character of his books. But he finds himself unexpectedly inspired by solving real life crimes with Detective Kate Beckett and even more affected by the detective herself whom he decides to base his new series of novels.

Castle Quotes

Sometimes the hardest things in life are the things most worth doing.


Beckett: (Clears throat) Ahem. What's the deal with men and boobs, anyway?
Castle: Biological. We can't help it.
Beckett: But doesn't it bother you that they're so obviously not real?
Castle: (Pauses) Santa's not real. We still love opening his presents.