Castle fans were eagerly watching for Nathan Fillion’s suggested Easter Egg in last week’s episode, but it was anything but hidden. Fillion’s character in the show is anything but his persona from Firefly, but he relishes in his “Space Cowboy” costume before being shot down.
The true Easter Egg in this not so subtle tribute to Nathan Fillion’s Firefly character is a prop on the shelf just to the left of the screen that you can’t see very well in this clip. It is the “It’s a nothin part ’til you dont got one” from the Firefly Episode “Out of Gas”
And her line “Didn’t you wear that five years ago” was clearly a nod to the last time Fillion wore the browncoat in 2005’s feature film Serenity.
Sigh… I miss Firefly.