Castle returns with three new episodes starting Nov. 9 with "Cool Boys" guest-starring Adam Baldwin as Det. Ethan Slaughter. The rough-and-tumble detective first appeared in season four's "Headhunters."
ABC has released four sneak peeks of CASTLE's season finale. Is the crime fighting duo heading towards splitsville? Or will it all work out in the end?
In "Under Fire" Castle and Beckett discover that the victim of a building fire was actually shot to death, they get on the trail of a serial arsonist turned murderer.
When Sid Ross, the powerful creator of a long-running sketch comedy show is killed, Castle and Beckett are called to investigate. But as they delve into the victim’s life and the colorful world of “Saturday Night Tonight,” they uncover a shocking secret that may explain Sid’s murder.
"Dreamworld" - Continuing from the season premiere episode, Beckett races against time to find a stolen toxin capable of killing tens of thousands of people. To make matters worse, Castle was exposed, leaving him with less than 24 hours to live.
Castle signs Walking dead alum to recurring role as a high-strung tech analyst with a troubled past.
A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. But COMPLICATIONS arise when they learn that Esposito might not have been telling them everything about his past with the culprit.
In "The Way of the Ninja," Castle and Beckett investigate the mysterious murder of a Japanese ballet dancer, they end up being targeted by a ninja assassin.
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.
“Hell to Pay” – When an axe-wielding, escaped psychiatric inmate drops dead in Castle’s P.I. office, Castle and Beckett’s investigation leads Castle to suspect the victim’s death could be the work of the Antichrist.