Castle: Season 4
2011 · 23 episodes · ★ 7.7
What Season 4 of Castle
Season 4 opens with Beckett fighting for her life after a shooting. Castle, weighed down by guilt over his role in the case, is determined to find the person responsible. The bond between them grows stronger than ever, though the aftermath weighs on every step. Meanwhile, the duo investigates crimes ranging from the theft of a museum sculpture to the murder of a ghost hunter. Castle brings his novelist's instincts and Beckett her detective's discipline, and together they carry a season full of suspense.
Season 4 Episodes
4x01 Rise
Detective Beckett fights for her life as Castle, plagued by guilt over his role in the events, struggles to uncover who's behind her brutal shooting. Meanwhile, back at the precinct, Ryan and Esposito have to adjust, as Victoria "Iron" Gates becomes the precinct's new uncompromising Captain.
Directed by: Rob Bowman · Writer: Andrew W. Marlowe · Starring: John M. Jackson, Larry Anderson, Valerie Azlynn, Victor Webster
4x02 Heroes & Villains
When an ex-con is mysteriously slain in an alley, Castle and Beckett believe a vigilante is behind the murder. But efforts to identify their suspect are thwarted when they discover that he roams the city in a Superhero costume – and may indeed be a Superhero. Can they capture and unmask the killer before he strikes again?
Directed by: Jeff Bleckner · Writer: David Amann · Starring: Kenneth Mitchell, Hank Harris, Jamie McShane, Valerie Azlynn
4x03 Head Case
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. Meanwhile, Alexis waits to hear news about her application to Stanford
Directing: Holly Dale · Writing: David Grae · Starring: Judith Hoag, Andy Umberger, Jordan Belfi, William Atherton
4x04 Kick the Ballistics
While investigating the mysterious shooting death of a young woman, Castle and Beckett face a cop's worst nightmare when they discover that the gun used in the killing is Det. Ryan's old service weapon - the one that was stolen by the serial killer, 3XK. Now with the clock ticking, the team must work to solve the murder, track down 3XK and retrieve Ryan's gun before the killer strikes again.
Directed by: Rob Bowman · Writer: Moira Kirland · Starring: Ross McCall, Tim Jo, Billy Lush, François Chau
4x05 Eye of the Beholder
A wealthy museum patron is a suspect when a valuable sculpture is stolen. Castle and Beckett investigate the theft with the help of an insurance investigator who sets her sights on Castle.
Directed by: John Terlesky · Writer: Shalisha Francis · Starring: Kristin Lehman, Jessica Tuck, David Hunt, Aasha Davis
4x06 Demons
While doing some investigative work at a New York mansion, a prominent ghost hunter is murdered. Castle and Beckett must figure out if paranormal activities are to blame.
Directed by: Bill Roe · Writer: Rob Hanning · Starring: Fredric Lehne, Amanda Walsh, Vernee Watson, Mark Harelik
4x07 Cops & Robbers
A crew of bank robbers disguised as classic television doctors take hostages which include Castle and Martha. But things are complicated by the fact that Beckett's on the outside having her every move scrutinized by a hostage negotiator and Castle's on the inside with information that the hostages are just a distraction for a more ominous plan.
Directing: Bryan Spicer · Writing: Terence Paul Winter · Starring: Dean Norris, Darren Pettie, Ian Kahn, Jack Laufer
4x08 Heartbreak Hotel
During the investigation of the murder of an Atlantic City casino owner at an abandoned warehouse, strong leads emerge for the team in both New York and Atlantic City. As Beckett and Capt. Gates work the New York leads together, Castle naturally chooses to join the detectives for the road trip to "America's Playground," hoping to help solve the case while throwing an impromptu bachelor party for Ryan.
Directing: Bill Roe · Writing: Elizabeth Davis Beall · Starring: Richard Burgi, Laura Regan, Susie Castillo, David Figlioli
4x09 Kill Shot
A sniper on a killing spree is terrorizing New York City. With the clock ticking down to the next murder and nothing to go on except a killer with no apparent motive but to instill terror, this could prove the team's toughest case yet. The hunt is made even more complicated when Beckett begins to experience increasingly strong moments of PTSD - moments she tries hard to hide from Castle and the detectives.
Directing: David Barrett · Writing: Alexi Hawley · Starring: Scott Michael Campbell, Troy Winbush, Mandy June Turpin, Tony Elias
4x10 Cuffed Mid-Season Finale
When Castle and Beckett wake up in bed, handcuffed together, in a locked room with no memory of how they got there, they must piece together the mystery of where they are and why, all while trying to escape. But as the two of them adjust to being shackled together, what's the biggest threat they face... the people who abducted them or each other? Meanwhile, Ryan, Esposito and Gates are left to investigate their disappearance in a case where all is not what it seems.
Directed by: John Terlesky · Writers: Terri Edda Miller, Andrew W. Marlowe · Starring: Darin Heames, Deborah Van Valkenburgh, Brett Wagner, Brad Carter
4x11 Till Death Do Us Part
When a lothario is killed, Castle and Beckett suspect that the victim’s mysterious double life holds the key to his murder. Their investigation leads to a shocking twist that threatens to disrupt Ryan’s wedding with Jenny
Directed by: Jeff Bleckner · Writer: David Grae · Starring: Mo Mandel, Parisa Fakhri, Sam Hennings, Jenna Gering
4x12 Dial M for Mayor
It was longtime Castle friend Mayor Weldon's political clout that allowed Castle to partner up with Beckett. But now, when a woman is found dead in a car that traces back to the Mayor's motor pool, that partnership comes under fire as the scandal surrounding the investigation threatens to bring down Weldon's administration.
Directing: Kate Woods · Writing: Christine Boylan · Starring: Derek Webster, Rebecca Field, Steven Brand, Cara Pifko
4x13 An Embarrassment of Bitches
When a famous dog trainer is killed, the investigation keeps coming back to charismatic reality TV star Kay Cappuccio. Kay, a favorite of tabloids and gossip websites the world over, has achieved stardom without possessing any discernible skill or talent. But there seems to be more to her story than she is letting on -- does that include murder?
Directed by: Thomas J. Wright · Writer: Rob Hanning · Starring: Hilarie Burton Morgan, Justin Hartley, Nana Visitor, Kevin E. West
4x14 The Blue Butterfly
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 realizes the only way to solve the present-day murder is to solve the murder from the past. The 1947 case comes to life through stylized flashbacks, featuring Castle as the private eye and Beckett as a femme fatale.
Directed by: Chuck Bowman · Writer: Terence Paul Winter · Starring: Mark Pellegrino, Chad Everett, Patrick Cassidy, Ellen Geer
4x15 Pandora (1)
Castle and Beckett pursue a ruthless killer who, they discover, is part of a sinister, international conspiracy. Castle and Beckett are joined on the case by Sophia Turner, a smart, sexy CIA operative who has a complicated past with Castle.
Directing: Bryan Spicer · Writing: David Amann · Starring: Jennifer Beals, Josh Stamberg, David Chisum, Russell Edge
4x16 Linchpin (2)
Castle & Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war. Their efforts continue to put Castle in contact with Sophia Turner - a smart, commanding and sexy CIA operative who was Castle's inspiration for Clara Strike in the "Derrick Storm" series of books; and intelligence officer Martin Danberg is back.
Directing: Rob Bowman · Writing: Andrew W. Marlowe · Starring: Jennifer Beals, Josh Stamberg, Jim Turner, David Chisum
4x17 Once Upon a Crime
When a woman dressed as Red Riding Hood is found dead in the woods with claw marks covering her body, and soon after a murdered Snow White is discovered with a poison apple in her hand, Castle & Beckett find themselves on a Grimm hunt to catch a fairytale killer before he kills again. But nothing is as it seems in a case filled with deceit, betrayal, secrets and murder
Directing: Jeff Bleckner · Writing: Kate Sargeant · Starring: Meghan, Duchess of Sussex, Taylor Kinney, Sarah Jane Morris, Jason Thompson
4x18 A Dance with Death
When Odette Morton, a contestant on the hit competition show “A Night Of Dance,” is found murdered in her dressing room, Castle and Beckett must navigate the case’s many twists and twirls without stepping on each other’s toes. But as they delve into Odette’s past, they discover that this reality starlet was harboring a shocking secret that may have led to her death
Directed by: Kevin Hooks · Writer: Moira Kirland · Starring: Millicent Martin, Tim Ransom, Adam J. Harrington, Larry Sullivan
4x19 47 Seconds
When a bomb explodes at a protest rally killing five people, Castle and Beckett realize the key to solving the case is to reconstruct the 47 seconds prior to the explosion. Using video and witness accounts, they uncover the shocking truth about who planted the bomb.
Directing: Paul Holahan · Writing: Shalisha Francis · Starring: Christine Woods, Tim Guinee, Walter Perez, Matthew Carey
4x20 The Limey
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, the Deputy General at the British Consulate whom Castle & Beckett suspect is up to more than just ambassadorial balls and diplomatic luncheons. Meanwhile, Lanie convinces Beckett that she needs to make a move on Castle before it is too late.
Directed by: Bill Roe · Writer: Elizabeth Davis Beall · Starring: Brett Tucker, Charles Shaughnessy, Omar J. Dorsey, Danielle Bisutti
4x21 Headhunters
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 city's gang unit. But Castle gets more than he bargained for when Slaughter shows him a grittier side of police work that puts Castle in the line of fire like never before
Directed by: John Terlesky · Writer: Alexi Hawley · Starring: Adam Baldwin, Michael McGrady, Reynaldo Gallegos, Anna Zielinski
4x22 Undead Again
When Castle and Beckett investigate the murder of a man with human bite marks on his body, Castle's wild theories start flying. But none are as wild as what their only witness insists happened - a Zombie attack. As the evidence pointing towards an undead assailant piles up, the team plunges into New York's Zombie subculture to find the killer and bring him in -- dead, undead or alive
Directed by: Bill Roe · Writer: Christine Boylan · Starring: Tiffany Dupont, Josh Braaten, Brandon Keener, Kevin Symons
4x23 Always Season Finale
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 are put on the table, the lives of the detectives at the 12th Precinct may never be the same.
Directing: Rob Bowman · Writing: Terri Edda Miller, Andrew W. Marlowe · Starring: Judith Scott, Tahmoh Penikett, Onahoua Rodriguez, Lobo Sebastian
Season 4 Cast
Stana KatićKate Beckett23 episodes
Jon HuertasJavier Esposito23 episodes
Seamus DeverKevin Ryan23 episodes
Penny Johnson JeraldVictoria Gates23 episodes
Valerie AzlynnAnn Hastings2 episodes
Russell EdgeJones2 episodes
Lorin McCraleyWest Side Wally2 episodes
Juliana DeverJenny Duffy-O'Malley2 episodes
Dean NorrisJohn DavisEpisode 1
Darin HeamesChuck MartinezEpisode 1
Hilarie Burton MorganKay CappuccioEpisode 1
Mark PellegrinoTom Dempsey / Tom Dempsey IIIEpisode 1All Seasons
Season 12009 · 10 ep. · ★ 7.3
Season 22009 · 24 ep. · ★ 7.5
Season 32010 · 24 ep. · ★ 7.7
Season 52012 · 24 ep. · ★ 7.5
Season 62013 · 23 ep. · ★ 7.5
Season 72014 · 23 ep. · ★ 7.2
Season 82015 · 22 ep. · ★ 7.1Where to Watch Season 4 of Castle
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Frequently Asked Questions
How many episodes are in Castle season 4?
Season 4 of Castle has 23 episodes.
When did season 4 of Castle air?
Premiered on September 19, 2011.
Where to watch season 4 of Castle?
In Spain, on Disney Plus and Tivify.
What is the best episode of Season 4?
According to the TMDB audience rating, episode 4x23, "Always," with a 8.3.