Castle (2009–2016)
3 user 2 critic

Cool Boys 

While Beckett is out of town, Castle becomes involved with Detective Slaughter in a case where a hi-tech chip has been stolen and one of Slaughter's informants is murdered.


Paul Holahan


Andrew W. Marlowe (created by), Alexi Hawley | 5 more credits »




Episode cast overview, first billed only:
Nathan Fillion ... Richard Castle
Stana Katic ... Kate Beckett (credit only)
Susan Sullivan ... Martha Rodgers
Jon Huertas ... Javier Esposito
Seamus Dever ... Kevin Ryan
Tamala Jones ... Lanie Parish
Molly C. Quinn ... Alexis Castle
Toks Olagundoye ... Hayley Shipton
Adam Baldwin ... Det. Ethan Slaughter
Corey Reynolds ... Mark West
Brett DelBuono ... Louis Prince
Phil Reeves ... Ronald Booth
Wade Allain-Marcus ... Clint
Kerry Barker ... Dawn
Al Carabello ... Brian Trucco


Detective Slaughter returns to enlist Castle's help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he's guilty or help to prove he's innocent.

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

9 November 2015 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


Louise Prince's 190 IQ test score was performed on 7th April 2005 when he was 6 years old. See more »


The fumigation notice is dated "9/15/13" through "9/20/13," even though the air date for this episode was 2015. See more »


[first lines]
Javier Esposito: [suiting up with SWAT] Expect the worst. These guys are beyond dangerous. Let's go.
See more »


References West Side Story (1961) See more »


Written by Leonard Bernstein and Stephen Sondheim
Performed by Nathan Fillion and Adam Baldwin
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User Reviews

Guys were Actually Cool, but I missed the 'gal'
15 November 2015 | by anusha-jain15See all my reviews

If Kate showed up, I'd given this one full points. But it was really an awesome episode. I totally loved it. I've not seen any previous episodes with detective Slaughter in them, but I'm definitely looking forward to enjoying them now. Looks like, I've missed quite a lot. Castle is a series which I'm gonna gobble up in the first break I get.

Hey, I loved the genius dude Louis too.

Just got a bit imaginative here. How about getting Louis and Alexis together sometime. ;) They would look great together. I mean the whole Castle Investigations gets the premise nicely set up for a budding romance. I think we could still call the show Castle, as in, Alexis Castle.

I wish we could get Beckett and Castle together asap. Looking forward to some funky romantic moments like good old times.

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