# List of Castle episodes

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Castle is an American comedy-drama police procedural television series on ABC which was created by Andrew W. Marlowe. It stars Nathan Fillion as Richard Castle, a famous mystery novelist, and Stana Katic as NYPD detective Kate Beckett. The series premiered as a midseason replacement on March 9, 2009. On May 12, 2016, it was announced that, despite several cast members signing one-year deals for a potential ninth season, the show would be canceled instead. During the course of the series, 173 episodes ofCastleaired over eight seasons, between March 9, 2009, and May 16, 2016.

## Series overview

| Season | Episodes | Episodes | Originally aired | Originally aired |
| Season | Episodes | Episodes | First aired | Last aired |
| 1 | 10 | 10 | March 9, 2009 (2009-03-09) | May 11, 2009 (2009-05-11) |
| 2 | 24 | 24 | September 21, 2009 (2009-09-21) | May 17, 2010 (2010-05-17) |
| 3 | 24 | 24 | September 20, 2010 (2010-09-20) | May 16, 2011 (2011-05-16) |
| 4 | 23 | 23 | September 19, 2011 (2011-09-19) | May 7, 2012 (2012-05-07) |
| 5 | 24 | 24 | September 24, 2012 (2012-09-24) | May 13, 2013 (2013-05-13) |
| 6 | 23 | 23 | September 23, 2013 (2013-09-23) | May 12, 2014 (2014-05-12) |
| 7 | 23 | 23 | September 29, 2014 (2014-09-29) | May 11, 2015 (2015-05-11) |
| 8 | 22 | 22 | September 21, 2015 (2015-09-21) | May 16, 2016 (2016-05-16) |

## Episodes
### Season 1 (2009)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 1 | 1 | "Flowers for Your Grave" | Rob Bowman | Andrew W. Marlowe | March 9, 2009 (2009-03-09) | 101 | 10.76 |
| 2 | 2 | "Nanny McDead" | John Terlesky | Barry Schindel | March 16, 2009 (2009-03-16) | 103 | 10.97 |
| 3 | 3 | "Hedge Fund Homeboys" | Rob Bowman | David Grae | March 23, 2009 (2009-03-23) | 104 | 9.14 |
| 4 | 4 | "Hell Hath No Fury" | Rob Bowman | Andrew W. Marlowe | March 30, 2009 (2009-03-30) | 102 | 9.09 |
| 5 | 5 | "A Chill Goes Through Her Veins" | Bryan Spicer | Charles Murray | April 6, 2009 (2009-04-06) | 105 | 9.03 |
| 6 | 6 | "Always Buy Retail" | Jamie Babbit | Gabrielle Stanton & Harry Werksman | April 13, 2009 (2009-04-13) | 107 | 7.73 |
| 7 | 7 | "Home is Where the Heart Stops" | Dean White | Will Beall | April 20, 2009 (2009-04-20) | 106 | 8.21 |
| 8 | 8 | "Ghosts" | Bryan Spicer | Moira Kirland | April 27, 2009 (2009-04-27) | 108 | 8.24 |
| 9 | 9 | "Little Girl Lost" | John Terlesky | Elizabeth Davis | May 4, 2009 (2009-05-04) | 109 | 9.97 |
| 10 | 10 | "A Death in the Family" | Bryan Spicer | Story by : Andrew W. Marlowe & Barry Schindel Teleplay by : Andrew W. Marlowe | May 11, 2009 (2009-05-11) | 110 | 9.96 |

### Season 2 (2009–10)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 11 | 1 | "Deep in Death" | Rob Bowman | Andrew W. Marlowe | September 21, 2009 (2009-09-21) | 201 | 9.26 |
| 12 | 2 | "The Double Down" | Rob Bowman | David Grae | September 28, 2009 (2009-09-28) | 204 | 9.15 |
| 13 | 3 | "Inventing the Girl" | Dwight Little | Moira Kirland | October 5, 2009 (2009-10-05) | 202 | 9.23 |
| 14 | 4 | "Fool Me Once..." | Bryan Spicer | Alexi Hawley | October 12, 2009 (2009-10-12) | 203 | 9.77 |
| 15 | 5 | "When the Bough Breaks" | John Terlesky | René Echevarria | October 19, 2009 (2009-10-19) | 205 | 9.69 |
| 16 | 6 | "Vampire Weekend" | Karen Gaviola | Terri Miller | October 26, 2009 (2009-10-26) | 206 | 9.99 |
| 17 | 7 | "Famous Last Words" | Rob Bowman | Jose Molina | November 2, 2009 (2009-11-02) | 207 | 9.43 |
| 18 | 8 | "Kill the Messenger" | Jonathan Frakes | Terence Paul Winter | November 9, 2009 (2009-11-09) | 208 | 9.82 |
| 19 | 9 | "Love Me Dead" | Bryan Spicer | Alexi Hawley | November 16, 2009 (2009-11-16) | 209 | 10.53 |
| 20 | 10 | "One Man's Treasure" | Helen Shaver | Elizabeth Davis | November 23, 2009 (2009-11-23) | 210 | 10.31 |
| 21 | 11 | "The Fifth Bullet" | John Terlesky | David Grae | December 7, 2009 (2009-12-07) | 211 | 7.80 |
| 22 | 12 | "A Rose for Everafter" | Bryan Spicer | Story by : Alexi Hawley Teleplay by : Terri Miller & Terence Paul Winter | January 11, 2010 (2010-01-11) | 212 | 9.47 |
| 23 | 13 | "Sucker Punch" | Tom Wright | Will Beall | January 18, 2010 (2010-01-18) | 213 | 9.45 |
| 24 | 14 | "The Third Man" | Rosemary Rodriguez | Terence Paul Winter | January 25, 2010 (2010-01-25) | 214 | 10.55 |
| 25 | 15 | "Suicide Squeeze" | David Barrett | Jose Molina | February 8, 2010 (2010-02-08) | 215 | 9.54 |
| 26 | 16 | "The Mistress Always Spanks Twice" | Tom Wright | Kate Sargeant | March 8, 2010 (2010-03-08) | 216 | 9.11 |
| 27 | 17 | "Tick, Tick, Tick..." | Bryan Spicer | Moira Kirland | March 22, 2010 (2010-03-22) | 217 | 12.21 |
| 28 | 18 | "Boom!" | John Terlesky | Elizabeth Davis | March 29, 2010 (2010-03-29) | 218 | 14.50 |
| 29 | 19 | "Wrapped Up in Death" | Bill Roe | Alexi Hawley | April 5, 2010 (2010-04-05) | 219 | 11.70 |
| 30 | 20 | "The Late Shaft" | Bryan Spicer | David Grae | April 12, 2010 (2010-04-12) | 220 | 12.68 |
| 31 | 21 | "Den of Thieves" | John Terlesky | Will Beall | April 19, 2010 (2010-04-19) | 221 | 10.39 |
| 32 | 22 | "Food to Die For" | Ron Underwood | Terri Miller | May 3, 2010 (2010-05-03) | 222 | 10.69 |
| 33 | 23 | "Overkill" | John Terlesky | René Echevarria | May 10, 2010 (2010-05-10) | 223 | 10.86 |
| 34 | 24 | "A Deadly Game" | Rob Bowman | Andrew W. Marlowe | May 17, 2010 (2010-05-17) | 224 | 10.07 |

### Season 3 (2010–11)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 35 | 1 | "A Deadly Affair" | Rob Bowman | Andrew W. Marlowe | September 20, 2010 (2010-09-20) | 301 | 10.70 |
| 36 | 2 | "He's Dead, She's Dead" | John Terlesky | Moira Kirland | September 27, 2010 (2010-09-27) | 303 | 11.08 |
| 37 | 3 | "Under the Gun" | Bryan Spicer | Alexi Hawley | October 4, 2010 (2010-10-04) | 302 | 10.83 |
| 38 | 4 | "Punked" | Rob Bowman | David Grae | October 11, 2010 (2010-10-11) | 304 | 10.66 |
| 39 | 5 | "Anatomy of a Murder" | John Terlesky | Terence Paul Winter | October 18, 2010 (2010-10-18) | 305 | 10.95 |
| 40 | 6 | "3XK" | Bill Roe | David Amann | October 25, 2010 (2010-10-25) | 307 | 11.32 |
| 41 | 7 | "Almost Famous" | Félix Alcalá | Elizabeth Davis | November 1, 2010 (2010-11-01) | 306 | 11.27 |
| 42 | 8 | "Murder Most Fowl" | Bryan Spicer | Matt Pyken | November 8, 2010 (2010-11-08) | 308 | 10.83 |
| 43 | 9 | "Close Encounters of the Murderous Kind" | Bethany Rooney | Shalisha Francis | November 15, 2010 (2010-11-15) | 309 | 9.98 |
| 44 | 10 | "Last Call" | Bryan Spicer | Scott Williams | December 6, 2010 (2010-12-06) | 310 | 7.63 |
| 45 | 11 | "Nikki Heat" | Jeff Bleckner | David Grae | January 3, 2011 (2011-01-03) | 312 | 9.61 |
| 46 | 12 | "Poof! You're Dead" | Millicent Shelton | Terri Miller | January 10, 2011 (2011-01-10) | 311 | 9.05 |
| 47 | 13 | "Knockdown" | Tom Wright | Will Beall | January 24, 2011 (2011-01-24) | 313 | 9.08 |
| 48 | 14 | "Lucky Stiff" | Emile Levisetti | Alexi Hawley | February 7, 2011 (2011-02-07) | 314 | 9.26 |
| 49 | 15 | "The Final Nail" | John Terlesky | Moira Kirland | February 14, 2011 (2011-02-14) | 315 | 8.75 |
| 50 | 16 | "Setup" | Rob Bowman | David Amann | February 21, 2011 (2011-02-21) | 316 | 8.99 |
| 51 | 17 | "Countdown" | Bill Roe | Andrew W. Marlowe | February 28, 2011 (2011-02-28) | 317 | 10.11 |
| 52 | 18 | "One Life to Lose" | David M. Barrett | Elizabeth Davis | March 21, 2011 (2011-03-21) | 318 | 12.03 |
| 53 | 19 | "Law & Murder" | Jeff Bleckner | Terence Paul Winter | March 28, 2011 (2011-03-28) | 319 | 12.56 |
| 54 | 20 | "Slice of Death" | Steve Boyum | Scott Williams | April 4, 2011 (2011-04-04) | 320 | 11.45 |
| 55 | 21 | "The Dead Pool" | Paul Holahan | Matt Pyken | April 11, 2011 (2011-04-11) | 321 | 12.33 |
| 56 | 22 | "To Love and Die in L.A." | John Terlesky | Alexi Hawley | May 2, 2011 (2011-05-02) | 322 | 12.11 |
| 57 | 23 | "Pretty Dead" | Jeff Bleckner | Terri Miller | May 9, 2011 (2011-05-09) | 323 | 12.60 |
| 58 | 24 | "Knockout" | Rob Bowman | Will Beall | May 16, 2011 (2011-05-16) | 324 | 12.93 |

### Season 4 (2011–12)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 59 | 1 | "Rise" | Rob Bowman | Andrew W. Marlowe | September 19, 2011 (2011-09-19) | 401 | 13.28 |
| 60 | 2 | "Heroes & Villains" | Jeff Bleckner | David Amann | September 26, 2011 (2011-09-26) | 402 | 11.67 |
| 61 | 3 | "Head Case" | Holly Dale | David Grae | October 3, 2011 (2011-10-03) | 403 | 11.18 |
| 62 | 4 | "Kick the Ballistics" | Rob Bowman | Moira Kirland | October 10, 2011 (2011-10-10) | 404 | 10.23 |
| 63 | 5 | "Eye of the Beholder" | John Terlesky | Shalisha Francis | October 17, 2011 (2011-10-17) | 405 | 11.23 |
| 64 | 6 | "Demons" | Bill Roe | Rob Hanning | October 24, 2011 (2011-10-24) | 406 | 10.81 |
| 65 | 7 | "Cops & Robbers" | Bryan Spicer | Terence Paul Winter | October 31, 2011 (2011-10-31) | 407 | 12.58 |
| 66 | 8 | "Heartbreak Hotel" | Bill Roe | Elizabeth Davis | November 7, 2011 (2011-11-07) | 408 | 11.07 |
| 67 | 9 | "Kill Shot" | David M. Barrett | Alexi Hawley | November 21, 2011 (2011-11-21) | 409 | 10.85 |
| 68 | 10 | "Cuffed" | John Terlesky | Terri Miller & Andrew W. Marlowe | December 5, 2011 (2011-12-05) | 410 | 8.12 |
| 69 | 11 | "Till Death Do Us Part" | Jeff Bleckner | David Grae | January 9, 2012 (2012-01-09) | 411 | 9.76 |
| 70 | 12 | "Dial M for Mayor" | Kate Woods | Christine Boylan | January 16, 2012 (2012-01-16) | 412 | 9.41 |
| 71 | 13 | "An Embarrassment of Bitches" | Tom Wright | Rob Hanning | January 23, 2012 (2012-01-23) | 413 | 10.05 |
| 72 | 14 | "The Blue Butterfly" | Chuck Bowman | Terence Paul Winter | February 6, 2012 (2012-02-06) | 414 | 8.70 |
| 73 | 15 | "Pandora" | Bryan Spicer | David Amann | February 13, 2012 (2012-02-13) | 415 | 8.86 |
| 74 | 16 | "Linchpin" | Rob Bowman | Andrew W. Marlowe | February 20, 2012 (2012-02-20) | 416 | 9.73 |
| 75 | 17 | "Once Upon a Crime" | Jeff Bleckner | Kate Sargeant | February 27, 2012 (2012-02-27) | 417 | 9.10 |
| 76 | 18 | "A Dance with Death" | Kevin Hooks | Moira Kirland | March 19, 2012 (2012-03-19) | 418 | 11.52 |
| 77 | 19 | "47 Seconds" | Paul Holahan | Shalisha Francis | March 26, 2012 (2012-03-26) | 419 | 11.87 |
| 78 | 20 | "The Limey" | Bill Roe | Elizabeth Davis | April 2, 2012 (2012-04-02) | 420 | 11.69 |
| 79 | 21 | "Headhunters" | John Terlesky | Alexi Hawley | April 16, 2012 (2012-04-16) | 421 | 11.23 |
| 80 | 22 | "Undead Again" | Bill Roe | Christine Boylan | April 30, 2012 (2012-04-30) | 422 | 11.08 |
| 81 | 23 | "Always" | Rob Bowman | Terri Miller & Andrew W. Marlowe | May 7, 2012 (2012-05-07) | 423 | 12.36 |

### Season 5 (2012–13)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | U.S. viewers (millions) |
| 82 | 1 | "After the Storm" | Rob Bowman | David Amann | September 24, 2012 (2012-09-24) | 501 | 10.45 |
| 83 | 2 | "Cloudy with a Chance of Murder" | Kate Woods | Elizabeth Beall | October 1, 2012 (2012-10-01) | 503 | 10.35 |
| 84 | 3 | "Secret's Safe with Me" | John Terlesky | Terence Paul Winter | October 8, 2012 (2012-10-08) | 502 | 10.61 |
| 85 | 4 | "Murder, He Wrote" | Rob Bowman | David Grae | October 15, 2012 (2012-10-15) | 505 | 10.94 |
| 86 | 5 | "Probable Cause" | John Terlesky | Andrew W. Marlowe | October 29, 2012 (2012-10-29) | 506 | 10.84 |
| 87 | 6 | "The Final Frontier" | Jonathan Frakes | Kate Sargeant | November 5, 2012 (2012-11-05) | 507 | 10.02 |
| 88 | 7 | "Swan Song" | David M. Barrett | Rob Hanning | November 12, 2012 (2012-11-12) | 504 | 10.07 |
| 89 | 8 | "After Hours" | David M. Barrett | Shalisha Francis | November 19, 2012 (2012-11-19) | 508 | 10.48 |
| 90 | 9 | "Secret Santa" | Paul Holahan | Christine Roum | December 3, 2012 (2012-12-03) | 509 | 8.50 |
| 91 | 10 | "Significant Others" | Holly Dale | Terence Paul Winter | January 7, 2013 (2013-01-07) | 510 | 8.66 |
| 92 | 11 | "Under the Influence" | John Terlesky | Elizabeth Beall | January 14, 2013 (2013-01-14) | 512 | 9.14 |
| 93 | 12 | "Death Gone Crazy" | Bill Roe | Jason Wilborn | January 21, 2013 (2013-01-21) | 511 | 8.82 |
| 94 | 13 | "Recoil" | Tom Wright | Story by : Rob Hanning & Cooper McMains Teleplay by : Rob Hanning | February 4, 2013 (2013-02-04) | 513 | 8.89 |
| 95 | 14 | "Reality Star Struck" | Larry Shaw | David Grae | February 11, 2013 (2013-02-11) | 514 | 8.97 |
| 96 | 15 | "Target" | Bill Roe | David Amann | February 18, 2013 (2013-02-18) | 515 | 9.85 |
| 97 | 16 | "Hunt" | Rob Bowman | Andrew W. Marlowe | February 25, 2013 (2013-02-25) | 516 | 10.77 |
| 98 | 17 | "Scared to Death" | Ron Underwood | Shalisha Francis | March 18, 2013 (2013-03-18) | 517 | 11.26 |
| 99 | 18 | "The Wild Rover" | Rob Hardy | Terence Paul Winter | March 25, 2013 (2013-03-25) | 518 | 10.57 |
| 100 | 19 | "The Lives of Others" | Larry Shaw | Terri Miller & Andrew W. Marlowe | April 1, 2013 (2013-04-01) | 519 | 11.79 |
| 101 | 20 | "The Fast and the Furriest" | Jonathan Frakes | Christine Roum | April 15, 2013 (2013-04-15) | 520 | 10.18 |
| 102 | 21 | "The Squab and the Quail" | Paul Holahan | Story by : Jason Wilborn & Adam Frost Teleplay by : Jason Wilborn | April 22, 2013 (2013-04-22) | 521 | 11.76 |
| 103 | 22 | "Still" | Bill Roe | Rob Hanning | April 29, 2013 (2013-04-29) | 524 | 10.53 |
| 104 | 23 | "The Human Factor" | Bill Roe | David Amann | May 6, 2013 (2013-05-06) | 522 | 10.84 |
| 105 | 24 | "Watershed" | John Terlesky | Andrew W. Marlowe | May 13, 2013 (2013-05-13) | 523 | 11.16 |

### Season 6 (2013–14)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | U.S. viewers (millions) |
| 106 | 1 | "Valkyrie" | John Terlesky | Rob Hanning | September 23, 2013 (2013-09-23) | 601 | 11.46 |
| 107 | 2 | "Dreamworld" | Tom Wright | David Grae | September 30, 2013 (2013-09-30) | 602 | 10.88 |
| 108 | 3 | "Need to Know" | Larry Shaw | Elizabeth Beall | October 7, 2013 (2013-10-07) | 603 | 10.51 |
| 109 | 4 | "Number One Fan" | John Terlesky | Terence Paul Winter | October 14, 2013 (2013-10-14) | 604 | 11.11 |
| 110 | 5 | "Time Will Tell" | Rob Bowman | Terri Miller & Andrew W. Marlowe | October 21, 2013 (2013-10-21) | 605 | 10.59 |
| 111 | 6 | "Get a Clue" | Holly Dale | Christine Roum | October 28, 2013 (2013-10-28) | 606 | 10.69 |
| 112 | 7 | "Like Father, Like Daughter" | Paul Holahan | Marc Dube | November 4, 2013 (2013-11-04) | 607 | 10.87 |
| 113 | 8 | "A Murder is Forever" | Bill Roe | Chad Gomez Creasey & Dara Resnik Creasey | November 11, 2013 (2013-11-11) | 608 | 10.05 |
| 114 | 9 | "Disciple" | Rob Bowman | David Amann | November 18, 2013 (2013-11-18) | 609 | 10.93 |
| 115 | 10 | "The Good, the Bad and the Baby" | John Terlesky | Terri Miller | November 25, 2013 (2013-11-25) | 610 | 11.41 |
| 116 | 11 | "Under Fire" | Paul Holahan | Andrew W. Marlowe & David Amann | January 6, 2014 (2014-01-06) | 612 | 8.83 |
| 117 | 12 | "Deep Cover" | Tom Wright | Terence Paul Winter | January 13, 2014 (2014-01-13) | 613 | 9.03 |
| 118 | 13 | "Limelight" | Bill Roe | Rob Hanning | January 20, 2014 (2014-01-20) | 611 | 8.96 |
| 119 | 14 | "Dressed to Kill" | Jeannot Szwarc | Elizabeth Beall | February 3, 2014 (2014-02-03) | 614 | 10.02 |
| 120 | 15 | "Smells Like Teen Spirit" | Kevin Hooks | Chad Gomez Creasey & Dara Resnik Creasey | February 17, 2014 (2014-02-17) | 615 | 7.75 |
| 121 | 16 | "Room 147" | Bill Roe | Adam Frost | February 24, 2014 (2014-02-24) | 616 | 8.69 |
| 122 | 17 | "In the Belly of the Beast" | Rob Bowman | Andrew W. Marlowe & David Amann | March 3, 2014 (2014-03-03) | 617 | 8.38 |
| 123 | 18 | "The Way of the Ninja" | Larry Shaw | Story by : Christine Roum & Shawn Waugh Teleplay by : Christine Roum | March 17, 2014 (2014-03-17) | 618 | 9.99 |
| 124 | 19 | "The Greater Good" | Holly Dale | David Grae | March 24, 2014 (2014-03-24) | 619 | 9.78 |
| 125 | 20 | "That '70s Show" | John Terlesky | David Amann | April 21, 2014 (2014-04-21) | 620 | 9.76 |
| 126 | 21 | "Law & Boarder" | Tom Wright | Jim Adler | April 28, 2014 (2014-04-28) | 621 | 10.39 |
| 127 | 22 | "Veritas" | Rob Bowman | Rob Hanning & Terence Paul Winter | May 5, 2014 (2014-05-05) | 622 | 9.00 |
| 128 | 23 | "For Better or Worse" | John Terlesky | Terri Miller & Andrew W. Marlowe | May 12, 2014 (2014-05-12) | 623 | 10.59 |

### Season 7 (2014–15)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 129 | 1 | "Driven" | Rob Bowman | David Amann | September 29, 2014 (2014-09-29) | 701 | 10.75 |
| 130 | 2 | "Montreal" | Alrick Riley | Andrew W. Marlowe | October 6, 2014 (2014-10-06) | 702 | 9.60 |
| 131 | 3 | "Clear and Present Danger" | Kate Woods | Chad Gomez Creasey & Dara Resnik Creasey | October 13, 2014 (2014-10-13) | 703 | 9.30 |
| 132 | 4 | "Child's Play" | Rob Bowman | Rob Hanning | October 20, 2014 (2014-10-20) | 704 | 8.82 |
| 133 | 5 | "Meme is Murder" | Bill Roe | Jim Adler | October 27, 2014 (2014-10-27) | 705 | 8.75 |
| 134 | 6 | "The Time of Our Lives" | Paul Holahan | Terri Miller | November 10, 2014 (2014-11-10) | 706 | 9.52 |
| 135 | 7 | "Once Upon a Time in the West" | Alrick Riley | Terence Paul Winter | November 17, 2014 (2014-11-17) | 707 | 9.38 |
| 136 | 8 | "Kill Switch" | Jeannot Szwarc | David Amann | November 24, 2014 (2014-11-24) | 708 | 9.55 |
| 137 | 9 | "Last Action Hero" | Paul Holahan | Christine Roum | December 1, 2014 (2014-12-01) | 709 | 8.45 |
| 138 | 10 | "Bad Santa" | Bill Roe | Chad Gomez Creasey & Dara Resnik Creasey | December 8, 2014 (2014-12-08) | 710 | 7.32 |
| 139 | 11 | "Castle, P.I." | Milan Cheylov | Rob Hanning | January 12, 2015 (2015-01-12) | 711 | 6.77 |
| 140 | 12 | "Private Eye Caramba!" | Hanelle Culpepper | Adam Frost | January 19, 2015 (2015-01-19) | 712 | 7.60 |
| 141 | 13 | "I, Witness" | Tom Wright | Terence Paul Winter & Amanda Johns | February 2, 2015 (2015-02-02) | 713 | 7.41 |
| 142 | 14 | "Resurrection" | Bill Roe | David Amann | February 9, 2015 (2015-02-09) | 714 | 7.43 |
| 143 | 15 | "Reckoning" | Rob Bowman | Andrew W. Marlowe | February 16, 2015 (2015-02-16) | 715 | 8.47 |
| 144 | 16 | "The Wrong Stuff" | Paul Holahan | Terri Miller | February 23, 2015 (2015-02-23) | 716 | 7.61 |
| 145 | 17 | "Hong Kong Hustle" | Jann Turner | Chad Gomez Creasey | March 16, 2015 (2015-03-16) | 717 | 8.95 |
| 146 | 18 | "At Close Range" | Bill Roe | Jim Adler | March 23, 2015 (2015-03-23) | 718 | 8.04 |
| 147 | 19 | "Habeas Corpse" | Kate Woods | Rob Hanning | March 30, 2015 (2015-03-30) | 719 | 8.16 |
| 148 | 20 | "Sleeper" | Paul Holahan | David Amann | April 20, 2015 (2015-04-20) | 720 | 8.34 |
| 149 | 21 | "In Plane Sight" | Bill Roe | Dara Resnik Creasey | April 27, 2015 (2015-04-27) | 721 | 8.31 |
| 150 | 22 | "Dead from New York" | Jeannot Szwarc | Terence Paul Winter | May 4, 2015 (2015-05-04) | 722 | 8.26 |
| 151 | 23 | "Hollander's Woods" | Paul Holahan | Andrew W. Marlowe & Terri Miller | May 11, 2015 (2015-05-11) | 723 | 8.44 |

### Season 8 (2015–16)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | US viewers (millions) |
| 152 | 1 | "XY" | Rob Bowman | Terence Paul Winter & Alexi Hawley | September 21, 2015 (2015-09-21) | 801 | 6.84 |
| 153 | 2 | "XX" | Paul Holahan | Alexi Hawley & Terence Paul Winter | September 28, 2015 (2015-09-28) | 802 | 6.70 |
| 154 | 3 | "PhDead" | Rob Bowman | Chad Gomez Creasey | October 5, 2015 (2015-10-05) | 804 | 6.76 |
| 155 | 4 | "What Lies Beneath..." | Larry Shaw | Barry O'Brien | October 12, 2015 (2015-10-12) | 803 | 6.78 |
| 156 | 5 | "The Nose" | Steve Robin | Nancy Kiu | October 19, 2015 (2015-10-19) | 805 | 6.67 |
| 157 | 6 | "Cool Boys" | Paul Holahan | Alexi Hawley | November 9, 2015 (2015-11-09) | 808 | 6.07 |
| 158 | 7 | "The Last Seduction" | John Terlesky | Rob Hanning | November 16, 2015 (2015-11-16) | 806 | 6.66 |
| 159 | 8 | "Mr. & Mrs. Castle" | Jeff Bleckner | Christine Roum | November 23, 2015 (2015-11-23) | 807 | 6.65 |
| 160 | 9 | "Tone Death" | Hanelle Culpepper | Robert Bella | February 8, 2016 (2016-02-08) | 809 | 5.72 |
| 161 | 10 | "Witness for the Prosecution" | Bill Roe | Terence Paul Winter | February 14, 2016 (2016-02-14) | 810 | 4.19 |
| 162 | 11 | "Dead Red" | Jeannot Szwarc | Jim Adler | February 15, 2016 (2016-02-15) | 811 | 5.15 |
| 163 | 12 | "The Blame Game" | Jessica Yu | Michal Zebede | February 22, 2016 (2016-02-22) | 812 | 5.48 |
| 164 | 13 | "And Justice For All" | Kate Woods | Adam Frost | February 29, 2016 (2016-02-29) | 813 | 5.26 |
| 165 | 14 | "The G.D.S." | John Terlesky | Alexi Hawley | March 7, 2016 (2016-03-07) | 814 | 5.68 |
| 166 | 15 | "Fidelis Ad Mortem" | Rob Bowman | Chad Gomez Creasey | March 21, 2016 (2016-03-21) | 815 | 6.50 |
| 167 | 16 | "Heartbreaker" | Tom Wright | Barry O'Brien | April 4, 2016 (2016-04-04) | 816 | 6.90 |
| 168 | 17 | "Death Wish" | Bill Roe | Stephanie Hicks | April 11, 2016 (2016-04-11) | 817 | 6.44 |
| 169 | 18 | "Backstabber" | Jessica Yu | Robert Bella | April 18, 2016 (2016-04-18) | 818 | 5.86 |
| 170 | 19 | "Dead Again" | Bill Roe | Rob Hanning | April 25, 2016 (2016-04-25) | 819 | 6.19 |
| 171 | 20 | "Much Ado About Murder" | Hanelle Culpepper | Christine Roum | May 2, 2016 (2016-05-02) | 820 | 6.03 |
| 172 | 21 | "Hell to Pay" | John Terlesky | Story by : Jim Adler Teleplay by : Adam Frost & Nancy Kiu | May 9, 2016 (2016-05-09) | 821 | 6.74 |
| 173 | 22 | "Crossfire" | Rob Bowman | Alexi Hawley & Terence Paul Winter | May 16, 2016 (2016-05-16) | 822 | 7.65 |