Chip Chalmers makes his debut as a Trek director here.
	First appearance of the oft-mentioned Risa paradise resort.
	The off-ship opening of this episode was the first for TNG.
	Earlier drafts had the Vorgons returning again at the end of the episode but to do a different time period. They were cut in the fear that it would become too confusing.
	Hetrick makes her first appearance as Vash, going on to appear in "Qpid" and DS9's "Q-less".
	Max Grodenchik is perhaps best known for his guesting as Rom in spinoff DS9.
	Among the Risian holiday makers, you can pick out an Andorian, a Vulcan and an Antican.
	The cave where Picard and Vash dig for the Uthat is enlarged by a matte painting created with pixels instead of pigment, with the CGI matte digitally blended with live action.

If you have some more behind the scenes information, send it in.