Season 2 premiered on September 21, 2009
Initial order of 13 episodes
Order increased to full season of 22 episodes
Additional 2 episodes ordered to bring to a total of 24 eps
Season 2 Intro
Most episodes of Season 2 begin with the following dialogue
There are two kinds of folks who sit around thinking about how to kill people. Psychopaths and mystery writers. I'm the kind that pays better. I'm Rick Castle Castle Castle I really am ruggedly handsome aren't I? Every writer needs inspiration, and I found mine. Detective Kate Beckett Beckett Beckett Nikki Heat? The Character he's basing on you. And thanks to my friendship with the mayor I get to be on her case. I'd be happy ot let you spank me. And together we catch killers. We make a pretty good team you know? Like Starsky and Hutch, Turner and Hooch. You do remind me a little of Hooch.
Season 2 Schedule
| Episode # | Title | Air Date |
| Episode 3:01 | A Deadly Affair | Sep 20, 2010 |
| Episode 3:02 | He’s Dead, She’s Dead | Sep 27, 2010 |
| Episode 3:03 | Under the Gun | Oct 4, 2010 |
| Episode 3:04 | Punked | Oct 11, 2010 |
| Episode 3:05 | Anatomy of a Murder | Oct 18, 2010 |
| Episode 3:06 | 3XK | Oct 25, 2010 |
| Episode 3:07 | Almost Famous | Nov 1, 2010 |
| Episode 3:08 | Murder Most Fowl | Nov 8, 2010 |
| Episode 3:09 | Close Encounters of the Murderous Kind | Nov 15, 2010 |
| No Castle Scheduled This Week | Nov 22, 2010 | |
| No Castle Scheduled This Week | Nov 29, 2010 | |
| Episode 3:10 | Last Call | Dec 6, 2010 |
| Episode 3:04 rpt | Punked (repeat) | Dec 13, 2010 |
| Episode 2:24 rpt | A Deadly Game (repeat) 9pm | Dec 20, 2010 |
| Episode 3:01 rpt | A Deadly Affair (repeat) 10pm | Dec 20, 2010 |
| Episode 3:05 rpt | Anatomy of a Murder | Dec 27, 2010 |
| Episode 3:11 | Nikki Heat | Jan 3, 2011 |
| Episode 3:12 | Poof, You’re Dead | Jan 10, 2011 |
| Episode 3:06 rpt | 3XK (repeat) | Jan 17, 2011 |
| Episode 3:13 | Knockdown | Jan 24, 2011 |
| Episode 3:09 rpt | Close Encounters of the Murderous Kind (repeat) | Jan 31, 2011 |
| Episode 3:14 | Lucky Stiff | Feb 7, 2011 |
| Episode 3:15 | The Final Nail | Feb 14, 2011 |
| Episode 3:16 | Setup – Part 1 | Feb 21, 2011 |
| Episode 3:17 | Countdown – Part 2 | Feb 28, 2011 |
| Episode 3:11 rpt | Nikki Heat (repeat) | Mar 7, 2011 |
| No Castle Scheduled This Week | Mar 14, 2011 | |
| Episode 3:18 | One Life to Lose | Mar 21, 2011 |
| Episode 3:19 | Law & Murder | Mar 28, 2011 |
| Episode 3:20 | Slice Of Death | Apr 4, 2011 |
| Episode 3:21 | The Dead Pool | Apr 11, 2011 |
| No Castle Scheduled This Week (Royal Wedding Special) |
Apr 18, 2011 | |
| Episode 3:13 rpt | Knockdown (repeat) | Apr 25, 2011 |
| Episode 3:22 | To Love and Die in LA | May 2, 2011 |
| Episode 3:23 | Pretty Dead | May 9, 2011 |
| Episode 3:24 | Knockout | May 16, 2011 |