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The Best Episodes of Castle 

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Updated June 14, 2019 1.4k votes 348 voters 25.1k views 26 items

List Rules Vote for your favorite Castle episodes, no matter how popular they are.

List of the best Castle episodes, as determined by voters like you. With all the amazing episodes of the show that exist, it's hard to trust just one person's opinion of what the top Castle episodes of all time are. Fans of Castle are very passionate about the show, and there are often debates over which episodes are the greatest. That's why this list exists- so you can vote for your favorites and we can find out once and for all what everyone thinks the best episode is.

The list you're viewing is made up of a variety of different episodes, including "Hell Hath No Fury" and "One Man's Treasure." What is the best Castle episode of all time? Look below and find out.
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list ordered by
1
Always is listed (or ranked) 1 on the list The Best Episodes of Castle
Always Episode: 23, Season: Castle - Season 4

Original Airing: May 07 2012

When the murder of an Army veteran puts Beckett on the trail of the man who shot her, Castle must decide how much he's willing to sacrifice to keep her safe. As secrets are revealed and feelings ...more
2
Tick, Tick, Tick... is listed (or ranked) 2 on the list The Best Episodes of Castle
Episode: 17, Season: Castle (2009) - Season 2

Original Airing: Mar 22 2010

Federal Agent Jordan Shaw, an insightful and accomplished Federal investigator teams up with Castle & Beckett to hunt down a cunning and elusive serial killer.
3
After The Storm is listed (or ranked) 3 on the list The Best Episodes of Castle
Episode: 1, Season: Castle - Season 5

Original Airing: Sep 24 2012

"After the Storm" - After four seasons of "will they" or "won't they," Richard Castle and Kate Beckett finally gave in to their feelings for each other in the much ...more
4
The Lives of Others is listed (or ranked) 4 on the list The Best Episodes of Castle
The Lives of Others Episode: 19, Season: Castle - Season 5

Original Airing: Apr 01 2013

In the show’s 100th episode, Castle finds himself in the unfortunate position of NOT being able to work a case. While he’s holed up in the loft with a broken leg, Beckett goes off to investigate ...more
5
The Blue Butterfly is listed (or ranked) 5 on the list The Best Episodes of Castle
Episode: 14, Season: Castle - Season 4

Original Airing: Feb 06 2012

When Castle and Beckett investigate the killing of a treasure hunter, they discover the case is linked to a mysterious homicide from 1947 involving a hard-boiled private detective. Castle ...more
6
Rise is listed (or ranked) 6 on the list The Best Episodes of Castle
Episode: 1, Season: Castle - Season 4

Original Airing: Sep 19 2011

Detective Beckett struggles to survive; Castle tries to identify the shooter; Ryan and Esposito try to adjust to the new captain.
7
Knockout is listed (or ranked) 7 on the list The Best Episodes of Castle
Knockout Episode: 24, Season: Castle (2009) - Season 3

Original Airing: May 16 2011

Kate Beckett's investigation into her mother's death is reactivated when Hal Lockwood - a professional hitman with knowledge of Beckett's mother's murder - stages a spectacular escape during a ...more
8
3XK is listed (or ranked) 8 on the list The Best Episodes of Castle
3XK Episode: 6, Season: Castle (2009) - Season 3

Original Airing: Oct 25 2010

When a beautiful woman is found dead in an alley, all clues point to her being a victim of the notorious Triple Killer. The Triple Killer, or 3XK, terrorized New York City four years ago, then ...more
9
Probable Cause is listed (or ranked) 9 on the list The Best Episodes of Castle
Episode: 6, Season: Castle - Season 5

Original Airing: Nov 05 2012

When a body is found at a sci-fi convention, Castle and Beckett are warped into the heart of fandom -- a world of egotistic celebrities, diehard costumed fans and enough drama for two galaxies.
10
To Love and Die in L.A. ... is listed (or ranked) 10 on the list The Best Episodes of Castle
To Love and Die in L.A. Episode: 22, Season: Castle (2009) - Season 3

Original Airing: May 02 2011

While investigating the shooting death of her ex-partner in New York, Beckett comes to believe the suspect has fled to Los Angeles. Against orders, she travels to L.A., going renegade to track ...more
11
Scared to Death is listed (or ranked) 11 on the list The Best Episodes of Castle
Scared to Death Episode: 17, Season: Castle - Season 5

Original Airing: Mar 18 2013

When a young woman appears to have literally been scared to death three days after watching a "haunted" DVD, Castle and Beckett delve into one of their creepiest cases yet. To make ...more
12
Pandora (1) is listed (or ranked) 12 on the list The Best Episodes of Castle
Episode: 15, Season: Castle - Season 4

Original Airing: Feb 13 2012

Castle and Beckett work with the CIA as they hunt a killer who's connected to an international conspiracy, and the case reunites Castle and a female CIA agent with whom he shares a past.
13
The Final Frontier is listed (or ranked) 13 on the list The Best Episodes of Castle
The Final Frontier Episode: 7, Season: Castle - Season 5

Original Airing: Nov 12 2012

A documentary crew follows Castle, Beckett and the team as they investigate the murder of a rock band's lead guitarist.
14
Linchpin (2) is listed (or ranked) 14 on the list The Best Episodes of Castle
Episode: 16, Season: Castle - Season 4

Original Airing: Feb 20 2012

Castle and Beckett try to stop a series of events that could lead the U.S. into a war, and their efforts continue to put Castle in CIA agent Sophia Conrad's orbit.
15
After hours is listed (or ranked) 15 on the list The Best Episodes of Castle
Episode: 8, Season: Castle - Season 5

Original Airing: Nov 19 2012

In the aftermath of a disastrous "Meet the Parents" dinner, a bickering Castle and Beckett are sent to retrieve the only witness to a murder, but they get ambushed and are forced to ...more
16
Kick the Ballistics is listed (or ranked) 16 on the list The Best Episodes of Castle
Kick the Ballistics Episode: 4, Season: Castle - Season 4

Original Airing: Oct 10 2011

A young woman will be murdered and the murder weapon will be Detective Ryan's old service piece. Castle, Beckett, Ryan and Esposito must rush against time to solve the murder, track down and ...more
17
The Wild Rover is listed (or ranked) 17 on the list The Best Episodes of Castle
The Wild Rover Episode: 18, Season: Castle - Season 5

Original Airing: Mar 25 2013

When a man is found dead in an industrial cake mixer, Castle and Beckett trace the murder to an Irish gang in Staten Island and a beautiful bar owner named Siobhan O’Doul (Cara Buono). Much to ...more
18
Significant Others is listed (or ranked) 18 on the list The Best Episodes of Castle
Episode: 10, Season: Castle - Season 5

Original Airing: Jan 07 2013

When a powerful divorce attorney who only represented women is murdered, Castle and Beckett are confronted with a plethora of angry ex-husbands, any one of whom could be the murderer. Meanwhile, ...more
19
Secret Santa is listed (or ranked) 19 on the list The Best Episodes of Castle
Secret Santa Episode: 9, Season: Castle - Season 5

Original Airing: Dec 03 2012

Castle and Beckett investigate when a bearded man named Kris Kringle falls from the sky in Central Park; Beckett and Castle work on a Christmas list together.
20
Headhunters is listed (or ranked) 20 on the list The Best Episodes of Castle
Episode: 21, Season: Castle - Season 4

Original Airing: Apr 16 2012

With tensions rising between Castle and Beckett, Castle finds himself a new partner -- Detective Ethan Slaughter (guest star Adam Baldwin, "Firefly"), a tough and colorful cop from the ...more
21
The Limey is listed (or ranked) 21 on the list The Best Episodes of Castle
Episode: 20, Season: Castle - Season 4

Original Airing: Apr 02 2012

A devilishly handsome detective from Scotland Yard, Simon Hunt, teams up with Castle & Beckett to find the person responsible for the murder of his friend's daughter. Also, Nigel Wyndham, ...more
22
The Fast and the Furries... is listed (or ranked) 22 on the list The Best Episodes of Castle
Episode: 20, Season: Castle - Season 5

Original Airing: Apr 15 2013

When Castle and Beckett find giant footprints at the site of a vicious murder, the team is forced to confront the unlikely theory that Bigfoot is the killer. But as they trek into the world of ...more
23
Reality Star Struck is listed (or ranked) 23 on the list The Best Episodes of Castle
Reality Star Struck Episode: 14, Season: Castle - Season 5

Original Airing: Nov 02 2013

Castle & Beckett get an up-close-and-personal view of a "Real Housewives"-esque reality TV series, "The Wives of Wall Street," when they investigate the murder of the ...more
24
Cloudy With A Chance of ... is listed (or ranked) 24 on the list The Best Episodes of Castle
Karl Erickson added Cloudy With A Chance of Murder Episode: 3, Season: Castle - Season 5

Original Airing: Oct 08 2012

When a young woman is mysteriously murdered, Beckett and Castle discover her death may be linked to a repossessed storage unit up for auction. Was the unit connected to her death? Was something ...more
25
Head Case is listed (or ranked) 25 on the list The Best Episodes of Castle
Episode: 3, Season: Castle - Season 4

Original Airing: Oct 03 2011

A murder scene complete with lots of blood but no victim and high tech life-extension science are all part of the investigation as Castle and Beckett try to solve a murder without a body. ...more