Take the 2-minute tour ×  I have begun watching Castle (in
rerun) and have a chuckle every time there is a Firefly
reference made. Nathan Fillion always gives a little smirk/wink.
Season 4, episode 16 - Setup: Martha asks Castle if he has heard
about "Serenity" (a spa in the catskills)  Season 2 episode 6 -
Vampire Weekend: Castle puts on his Halloween "costume", a space
cowboy, the same he wore in Firefly ("like 5 years ago", as
Alexis says - the entire dialog is hilarious).  What (if any)
are some other episodes (season and number) with references to
Firefly?  share|improve this question While I too enjoy both
Firefly and Castle, this question may be off topic as it is a
list type question. Nathan Fillion is a very good actor, with
very believable characters. –  Paulster2 Dec 24 '13 at 18:39
Maybe, but I am not asking about favorite references, but what
allusions exists, so is in the realm of content and theme. Would
it be better if explicitly ask for season and episode? –  Wayne
Weibel Dec 24 '13 at 19:05