I could really use a couple of Castle nuggets. — Mark
ADAM: Then a couple you shall have. First, remember the role I teased about an alien abduction support group leader? The show has cheekily cast Millennium star Lance Henriksen to play the character. And second, Terri Miller, who penned the Season 2 Halloween episode that was rife with Firefly references, will also take on the upcoming episode that features Brothers & Sisters' Gilles Marini as a magician.
Source: TV Guide