Castle (2009–2016)
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The Final Frontier 

During the annual major SciFfi convention, Nebula 9 - super-fan Audrey O'Neill, who finally organized with a nerd couple a life performance there starring the short-lived series' original ... See full summary »



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Episode cast overview, first billed only:
Martha Rodgers (credit only)
Lanie Parish (credit only)
Alexis Castle (as Molly Quinn)
Captain Victoria Gates (credit only)
Gabriel Winters
Stephanie Frye
Benjamin Donnelly
Audrey O'Neill
Davis Hawthorne
Simon Westport (as Chris L. McKenna)


During the annual major SciFfi convention, Nebula 9 - super-fan Audrey O'Neill, who finally organized with a nerd couple a life performance there starring the short-lived series' original cast as well after decade of 'webipsodes', is found dead on set, killed with a real 'space laser', of which only two working ones were custom-made. Castle, who has better taste, is amused to find Becket was part of a college fan gang. The team works out various personal, career and business motives as well as opportunities for cast and crew. Written by KGF Vissers

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TV-PG | See all certifications »




Release Date:

5 November 2012 (USA)  »

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Technical Specs


Sound Mix:


Aspect Ratio:

16:9 HD
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Did You Know?


Benjamin Donnelly's "Han shot first" shirt is a reference to a famous edit George Lucas made to Star Wars: Episode IV - A New Hope (1977). When the film was originally released in 1977, Han Solo is confronted by Greedo the bounty hunter in the Mos Eisley cantina and, after a short conversation, Han shoots him; when the Special Edition was released into theaters in 1997, the scene was changed so that Greedo shoots first, with Han returning fire in self defense. This change was considered controversial by moviegoers, as many believed it altered Han's moral ambiguity and made his later change in the sequels from anti-hero to hero less meaningful. "Han shot first" became a fan retort to the cinematic assertion, considered canon by Lucas, that Greedo shot first. See more »


Kate Beckett: [on the bridge of the "Nebula 9" ship] I can't tell you how many times I have had dreams about being in this very ship.
Richard Castle: Sexy dreams? You know, it's never too late to live out your fantasy.
Kate Beckett: You do realize that this is still a crime scene?
Richard Castle: Oh. Right. Ew.
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References Firefly (2002) See more »


Castle Theme
Written by Robert Duncan
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User Reviews

Castle References to Firefly
15 April 2014 | by See all my reviews

Did you know? When Caste is first belittling the "Nebula 9" series to Beckett, he contrasts it to good sci-fi shows, "Star Trek, Battlestar, that Joss Whedon show. . .". Joss Whedon was the screenwritter and creator of the 2002-03 TV sci-fi series, Firefly, in which Nathan Fillion also starred. This one of at least 3 references, probably more, which Castle makes in various episodes to the Firefly series. Another is when he dresses up as a space cowboy for Halloween, and Molly Quinn tells him the costume is so 6 years ago. The third reference I know of is when he unexpectedly speaks Chinese. When Beckett asks how he learned Chinese, Castle explains it was from some TV show he used to like.

5 of 7 people found this review helpful.  Was this review helpful to you?

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