I've enjoyed the show over the years. I think the best episodes were from season 1-4. When Booth & Bones got hitched, I felt the "tension" of the show decline a lot (IMO) after that. I think the closing episode showed, or mentioned just about everybody in the series. Two exceptions were some "squints". I don't remember their names, but the tall, thin one (that was always depressed and thought he knew as much as Bones) and the one that was from Mexico (or South America?) were not shown or mentioned. I thought it was a nice touch they showed the scorched plaque of the squint "Nigel-Murray" that had been killed in the lab by a sniper. The show had done well to be on for 12 seasons. That longevity is quite rare.