The BEST episodes of Castle (2009) season 6

Every episode of Castle (2009) season 6, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Castle (2009) season 6!

Rick Castle is one of the world's most successful crime authors. But when his rock star lifestyle isn't enough, this bad boy goes looking for new trouble and finds it working with smart, beautiful Detective Kate Beckett. Inspired by her professional record and intrigued by her buttoned-up personality, Castle's found the model for his bold new character whether she likes it or not. Now with the mayor's permission, Castle is helping solve crime with his own twist.

Last Updated: 11/11/2024Network: ABC (US)Status: Ended
Share:
Veritas
star
8.29
2653 votes

#1 - Veritas

Season 6 - Episode 22 - Aired 5/5/2014

A secret investigation conducted by Beckett related to her mother's murder goes awry when a man she has been surveilling is killed. When evidence links Beckett to the victim, she and Castle become the targets of a manhunt that puts both of them in grave danger.

Directors: Rob Bowman
Watch Now:AmazonApple TV
Time Will Tell
star
8.26
3239 votes

#2 - Time Will Tell

Season 6 - Episode 5 - Aired 10/21/2013

A grisly murder investigation leads Castle and Beckett to a suspect who claims he's traveled back in time to stop terrible events from unfolding, events that will change the course of human history. Is he simply a deluded killer, or is it possible that he's telling the truth?

Directors: Rob Bowman
Watch Now:AmazonApple TV
Disciple
star
8.14
3168 votes

#3 - Disciple

Season 6 - Episode 9 - Aired 11/18/2013

Castle and Beckett arrive at a crime scene to discover that the female victim bears a shocking resemblance to Medical Examiner Lanie Parish. As the team tries to make sense of this mystery, they realize the killer may be targeting detectives of the 12th Precinct. Dr. Kelly Nieman, an exclusive Manhattan cosmetic surgeon who draws Castle and Beckett's interest because of her connection to the victim.

Directors: Rob Bowman
Writer: David Amann
Watch Now:AmazonApple TV
In the Belly of the Beast
star
8.09
2750 votes

#4 - In the Belly of the Beast

Season 6 - Episode 17 - Aired 3/3/2014

Beckett is recruited to assist on a Narcotics investigation, but a routine mission turns deadly when an undercover operation goes awry. To survive, Beckett must engage in a battle of wits against some of the most dangerous men in the New York underworld – including a powerful enemy from her past.

Directors: Rob Bowman
Watch Now:AmazonApple TV
Valkyrie (1)
star
8.07
3536 votes

#5 - Valkyrie (1)

Season 6 - Episode 1 - Aired 9/23/2013

Last season ended with Beckett wrestling over whether to take a high-profile job in DC -- a dilemma made more complicated when Castle proposed to her. In the Season 6 Premiere of "Castle," Castle and Beckett will deal with the consequences of their decisions against the backdrop of a high-stakes investigation.

Directors: John Terlesky
Writer: Rob Hanning
Watch Now:AmazonApple TV
star
8.03
2963 votes

#6 - Under Fire

Season 6 - Episode 11 - Aired 1/6/2014

When 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. Meanwhile, Ryan's wife, Jenny, goes into labor, but disaster threatens to ruin the joyous moment.

Directors: Paul Holahan
Watch Now:AmazonApple TV
The Way of the Ninja
star
8.01
2817 votes

#7 - The Way of the Ninja

Season 6 - Episode 18 - Aired 3/17/2014

When a Japanese ballet dancer is mysteriously murdered, Castle and Beckett's investigation into her secret life uncovers evidence that she was killed by a ninja, and now that ninja is coming after them.

Directors: Larry Shaw
Watch Now:AmazonApple TV
Like Father, Like Daughter
star
8.01
3056 votes

#8 - Like Father, Like Daughter

Season 6 - Episode 7 - Aired 11/4/2013

Alexis enlists Castle’s help on an Innocence Review case to prove that a death row inmate, Frank Henson, was wrongly convicted. With only 72 hours left before his execution, Castle and Alexis (with help from Beckett) urgently investigate the original murder, only to uncover explosive secrets that may seal Frank’s fate.

Directors: Paul Holahan
Writer: Marc Dube
Watch Now:AmazonApple TV
Deep Cover
star
8.00
3081 votes

#9 - Deep Cover

Season 6 - Episode 12 - Aired 1/13/2014

The murder of a young video store clerk takes a strange turn when the team discovers his past history as a high-level hacker. But it's nothing compared to the shock Castle receives when their investigation leads them straight to his father, Jackson Hunt.

Directors: Thomas J. Wright
Watch Now:AmazonApple TV
The Good, The Bad & The Baby
star
7.97
3150 votes

#10 - The Good, The Bad & The Baby

Season 6 - Episode 10 - Aired 11/25/2013

A bleeding man stumbles into a church, but just before dying, he hands a mysterious bundle to the priest. When the bundle turns out to be a smiling baby boy, Castle and Beckett find themselves accidental nannies to the newborn. But when they determine the baby and the victim were not related, they discover that finding his rightful parents may be just as hard as solving the murder.

Directors: John Terlesky
Writer: Terri Miller
Watch Now:AmazonApple TV
Room 147
star
7.95
2835 votes

#11 - Room 147

Season 6 - Episode 16 - Aired 2/24/2014

When a guilt-ridden young woman confesses to the murder of a struggling actor -- knowing details only the killer could know -- Beckett and Castle seem to have an open-and-shut case, until they uncover proof that their suspect couldn’t possibly be the killer. When a second person confesses, equally convinced they committed the murder, the team realizes the case is far more mysterious than they thought.

Directors: Bill Roe
Writer: Adam Frost
Watch Now:AmazonApple TV
Smells Like Teen Spirit
star
7.95
3090 votes

#12 - Smells Like Teen Spirit

Season 6 - Episode 15 - Aired 2/17/2014

The murder of a high school mean girl draws Castle back to one of his many alma maters, where he is giddy to learn that the evidence points to a surprising perpetrator - a teenage telekinetic, throwing he and Beckett into a real-life "Carrie."

Directors: Kevin Hooks
Watch Now:AmazonApple TV
Dreamworld (2)
star
7.95
3236 votes

#13 - Dreamworld (2)

Season 6 - Episode 2 - Aired 9/30/2013

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.

Directors: Thomas J. Wright
Writer: David Grae
Watch Now:AmazonApple TV
That '70s Show
star
7.94
2771 votes

#14 - That '70s Show

Season 6 - Episode 20 - Aired 4/21/2014

When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit. Unfortunately, their only witness is a man who thinks it’s still the 1970’s, so to uncover what he knows, they must play into his delusion, and party like it’s the last days of disco.

Directors: John Terlesky
Writer: David Amann
Watch Now:AmazonApple TV
Law & Boarder
star
7.92
2604 votes

#15 - Law & Boarder

Season 6 - Episode 21 - Aired 4/28/2014

When an up-and-coming professional skateboarder is gunned down by a mysterious motorcyclist, Castle and Beckett are thrust into the world of extreme sports, where the death defying stunts aren’t the only thing that’s dangerous.

Directors: Thomas J. Wright
Writer: Jim Adler
Watch Now:AmazonApple TV
Number One Fan
star
7.92
3254 votes

#16 - Number One Fan

Season 6 - Episode 4 - Aired 10/14/2013

A desperate young murder suspect, Emma Briggs, takes hostages at gunpoint then mysteriously insists that she will only negotiate with one person: Richard Castle.

Directors: John Terlesky
Watch Now:AmazonApple TV
For Better or Worse
star
7.87
2495 votes

#17 - For Better or Worse

Season 6 - Episode 23 - Aired 5/12/2014

Castle and Beckett's long-awaited wedding is almost here, but when a shocking surprise threatens to ruin the big day, they are sent on a wild mission filled with masked men, angry bikers, and a charming ne'er-do-well from Beckett's past.

Directors: John Terlesky
Watch Now:AmazonApple TV
Limelight
star
7.84
2954 votes

#18 - Limelight

Season 6 - Episode 13 - Aired 1/20/2014

When a rising young pop star is found dead in an alley, Castle and Beckett delve into the victim's out-of-control hard-partying lifestyle, but as they dig deeper, a shocking revelation threatens to rock their investigation.

Directors: Bill Roe
Writer: Rob Hanning
Watch Now:AmazonApple TV
A Murder Is Forever
star
7.83
3077 votes

#19 - A Murder Is Forever

Season 6 - Episode 8 - Aired 11/11/2013

When a famed relationship therapist is murdered, it appears that her access to the secrets of her elite and powerful clients led to her death. But when Castle and Beckett discover the victim was in possession of a rare object worth millions of dollars, they realize that this case may be even more complicated – and dangerous – than they thought.

Directors: Bill Roe
Watch Now:AmazonApple TV
Need to Know
star
7.81
3156 votes

#20 - Need to Know

Season 6 - Episode 3 - Aired 10/7/2013

With Beckett still in D.C., Castle and the boys investigate the murder of former child star Charlie Reynolds, who rose to fame playing the lovable nerd on an early 90s High School sitcom. But the case takes a turn for the strange when Agents Beckett and McCord arrive from Washington to take over the investigation, creating competitive tension in the precinct. Meanwhile, Castle has to contend with a new face at the 12th, NYPD Detective Frank "Sully" Sullivan.

Directors: Larry Shaw
Watch Now:AmazonApple TV
The Greater Good
star
7.80
2723 votes

#21 - The Greater Good

Season 6 - Episode 19 - Aired 3/24/2014

Castle and Beckett investigate the murder of a Wall Street trader, but the case takes a shocking turn when the they discover the victim was an undercover informant for the U.S. Attorney's office. To complicate matters further, the U.S. attorney involved is Elizabeth Weston, Captain Gates' estranged sister.

Directors: Holly Dale
Writer: David Grae
Watch Now:AmazonApple TV
Dressed to Kill
star
7.78
2939 votes

#22 - Dressed to Kill

Season 6 - Episode 14 - Aired 2/3/2014

When the assistant to Modern Fashion Magazine’s dictatorial editor Matilda King is found murdered, Castle and Beckett are thrust into the glitzy, ruthless world of high fashion in their search for the killer. Meanwhile Beckett’s history in the modelling world gets her access to a very special wedding surprise.

Directors: Jeannot Szwarc
Watch Now:AmazonApple TV
Get a Clue
star
7.71
3148 votes

#23 - Get a Clue

Season 6 - Episode 6 - Aired 10/28/2013

Castle and Beckett investigate the bizarre murder of a young woman who was found ritually posed. When the team finds a collection of strange symbols in her apartment and the prime suspect turns out to be a mysterious monk, Castle becomes convinced they’ve stumbled onto a “Da Vinci Code” style conspiracy. Meanwhile, Castle tries to come to grips with the fact that Alexis and Pi have moved in together.

Directors: Holly Dale
Watch Now:Apple TV