Castle (2009–2016)
3 user 2 critic

Probable Cause 

After Tessa Horton is murdered in a bizarre fashion at her apartment, evidence piles up, all pointing at Castle. He denies knowing her, let alone having had an affair, but there are ... See full summary »


John Terlesky


Andrew W. Marlowe (created by), Andrew W. Marlowe | 1 more credit »

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Episode cast overview, first billed only:
Nathan Fillion ... Richard Castle
Stana Katic ... Kate Beckett
Susan Sullivan ... Martha Rodgers
Jon Huertas ... Javier Esposito
Seamus Dever ... Kevin Ryan
Tamala Jones ... Lanie Parish
Molly C. Quinn ... Alexis Castle (as Molly Quinn)
Penny Johnson Jerald ... Captain Victoria Gates
Michael Mosley ... Jerry Tyson
Alexa Havins ... Elle Daniels
Romi Dias Romi Dias ... ADA Toni Gonzalez
Gerald Downey ... Lloyd Kurtzman
Paul Anthony Scott ... Paul Dyson
Dasha Flynn ... Receptionist
DawnMarie Ferrara ... Female Uniform


After Tessa Horton is murdered in a bizarre fashion at her apartment, evidence piles up, all pointing at Castle. He denies knowing her, let alone having had an affair, but there are fingerprints, security footage and recovered hard-drive evidence all showing he did. Although no one in the precinct can believe him guilty, they must arrest him based on the evidence. Only then does vindictive serial killer Jerry Tyson manifest himself to Castle while he is in Holding at the precinct, promising that he won't survive jail, which calls for a radical solution. Written by KGF Vissers

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

29 October 2012 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:

Dolby Digital



Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


The name on Jerry Tyson's (3XK) badge when he threatens Castle in the precinct is J. Rook. In Castle's Nikki Heat books, Jameson Rook is the character Castle based on himself. See more »


When Castle & Beckett are talking in the precinct, as Castle hands Kate a cup of coffee, it is clear she is holding the mug by the handle. As soon as the camera changes, she is seen holding it by the bottom. See more »


[first lines]
[entering apartment after a trip]
Elle Daniels: Tessa, I'm home.
[picks up mail from floor]
Elle Daniels: Tess?... Tess? You here?
See more »


References Castle: Murder He Wrote (2012) See more »


Castle Theme
Written by Robert Duncan
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User Reviews

Just when you thought it couldn't get any better
30 October 2012 | by dfmdotcomSee all my reviews

Aside from the great character development of this series, this time I have to hand it to John Terlesky and his directing. This episode began rather slowly and I found myself thinking, for the first time, the series was really starting to get old and predictable. Then it happened, Great directing, acting, and story telling that keeps you plastered to the tube! This has got to be one of the very best episodes. I loved the series Firefly and followed Nathan Fillion to Castle, albeit 2 years after it premiered. Obviously, I wasn't expecting that same magic. I am happy to say that this series really invests in the characters. In turn, you can't help but find yourself investing in them too. If you are new to Castle, I highly recommend that you start watching from the beginning and catch up. You will not be disappointed!

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