Here is a detailed Castle episode guide that can help you browse all Castle episodes in a snap! Each episode's rating and release date is listed on the right of the title. You may also use the quick season jumper to focus on a certain Castle season.
| Castle Season 1 Episodes | yyyy-mm-dd | Rating | |
| s1e1 | Flowers For Your Grave | 2009-03-09 | 9.50/10 |
| s1e2 | Nanny Mcdead | 2009-03-16 | 8.89/10 |
| s1e3 | Hedge Fund Homeboys | 2009-03-23 | 9.11/10 |
| s1e4 | Hell Hath No Fury | 2009-03-30 | 9.60/10 |
| s1e5 | A Chill Goes Through Her Veins | 2009-04-06 | 10.00/10 |
| s1e6 | Always Buy Retail | 2009-04-13 | 9.83/10 |
| s1e7 | Home Is Where The Heart Stops | 2009-04-20 | 9.80/10 |
| s1e8 | Ghosts | 2009-04-27 | 9.71/10 |
| s1e9 | Little Girl Lost | 2009-05-04 | 7.67/10 |
| s1e10 | A Death In The Family | 2009-05-11 | 9.29/10 |
| Castle Season 2 Episodes | yyyy-mm-dd | Rating | |
| s2e1 | Deep In Death | 2009-09-21 | 9.18/10 |
| s2e2 | The Double Down | 2009-09-28 | 9.67/10 |
| s2e3 | Inventing The Girl | 2009-10-05 | 9.80/10 |
| s2e4 | Fool Me Once | 2009-10-12 | 8.33/10 |
| s2e5 | When The Bough Breaks | 2009-10-19 | 9.27/10 |
| s2e6 | Vampire Weekend | 2009-10-26 | 9.33/10 |
| s2e7 | Famous Last Words | 2009-11-02 | 9.78/10 |
| s2e8 | Kill The Messenger | 2009-11-09 | 9.33/10 |
| s2e9 | Love Me Dead | 2009-11-16 | 9.57/10 |
| s2e10 | One Man's Treasure | 2009-11-23 | 9.57/10 |
| s2e11 | The Fifth Bullet | 2009-12-07 | 9.78/10 |
| s2e12 | A Rose For Everafter | 2010-01-11 | 9.75/10 |
| s2e13 | Sucker Punch | 2010-01-18 | 9.89/10 |
| s2e14 | The Third Man | 2010-01-25 | 9.71/10 |
| s2e15 | Suicide Squeeze | 2010-02-08 | 10.00/10 |
| s2e16 | The Mistress Always Spanks Twice | 2010-03-08 | 10.00/10 |
| s2e17 | Tick, Tick, Tick... | 2010-03-22 | 9.36/10 |
| s2e18 | Boom! | 2010-03-29 | 9.92/10 |
| s2e19 | Wrapped Up in Death | 2010-04-05 | 9.80/10 |
| s2e20 | The Late Shaft | 2010-04-12 | 9.90/10 |
| s2e21 | Den of Thieves | 2010-04-19 | 9.82/10 |
| s2e22 | Food to Die For | 2010-05-03 | 9.60/10 |
| s2e23 | Overkill | 2010-05-10 | 9.88/10 |
| s2e24 | A Deadly Game | 2010-05-17 | 9.85/10 |
| Castle Season 3 Episodes | yyyy-mm-dd | Rating | |
| s3e1 | A Deadly Affair | 2010-09-20 | 9.67/10 |
| s3e2 | He's Dead, She's Dead | 2010-09-27 | 9.67/10 |
| s3e3 | Under the Gun | 2010-10-04 | 9.42/10 |
| s3e4 | Punked | 2010-10-11 | 9.65/10 |
| s3e5 | Anatomy of a Murder | 2010-10-18 | 9.85/10 |
| s3e6 | 3XK | 2010-10-25 | 8.31/10 |
| s3e7 | Almost Famous | 2010-11-01 | 8.76/10 |
| s3e8 | Murder Most Fowl | 2010-11-08 | 9.91/10 |
| s3e9 | Close Encounters of the Murderous Kind | 2010-11-15 | 9.45/10 |
| s3e10 | Last Call | 2010-12-06 | 9.94/10 |
| s3e11 | Nikki Heat | 2011-01-03 | 9.79/10 |
| s3e12 | Poof! You're Dead | 2011-01-10 | 10.00/10 |
| s3e13 | Knockdown | 2011-01-24 | 9.77/10 |
| s3e14 | Lucky Stiff | 2011-02-07 | 9.80/10 |
| s3e15 | The Final Nail | 2011-02-14 | 9.56/10 |
| s3e16 | Set Up (Part 1) | 2011-02-21 | 10.00/10 |
| s3e17 | Countdown (Part 2) | 2011-02-28 | 9.81/10 |
| s3e18 | One Life to Lose | 2011-03-21 | 8.90/10 |
| s3e19 | Law & Murder | 2011-03-28 | 9.65/10 |
| s3e20 | Slice of Death | 2011-04-04 | 9.55/10 |
| s3e21 | The Dead Pool | 2011-04-11 | 8.81/10 |
| s3e22 | To Love and Die in L.A. | 2011-05-02 | 10.00/10 |
| s3e23 | Pretty Dead | 2011-05-09 | 9.33/10 |
| s3e24 | Knockout | 2011-05-16 | 9.74/10 |
| Castle Season 4 Episodes | yyyy-mm-dd | Rating | |
| s4e0 | Sneak Peek | 2011-09-09 | 7.00/10 |
| s4e1 | Rise | 2011-09-19 | 9.71/10 |
| s4e2 | Heroes and Villains | 2011-09-26 | 9.13/10 |
| s4e3 | Head Case | 2011-10-03 | 9.08/10 |
| s4e4 | Kick the Ballistics | 2011-10-10 | 8.92/10 |
| s4e5 | Eye of the Beholder | 2011-10-17 | 9.50/10 |
| s4e6 | Demons | 2011-10-24 | 9.33/10 |
| s4e7 | Cops & Robbers | 2011-10-31 | 9.62/10 |
| s4e8 | Heartbreak Hotel | 2011-11-07 | 8.45/10 |
| s4e9 | Kill Shot | 2011-11-21 | 9.78/10 |
| s4e10 | Cuffed | 2011-12-05 | 9.60/10 |
| s4e11 | Till Death Do Us Part | 2012-01-09 | 9.60/10 |
| s4e12 | Dial M for Mayor | 2012-01-16 | 10.00/10 |
| s4e13 | An Embarrassment of Bitches | 2012-01-23 | 9.67/10 |