It was guest star heaven, since even Leena and MacPherson had roles!
What made me laugh was when Pete asked "Spike" if he was a vampire and he said no... then "Spike" suggested only preadolescent girls were interested in Vampires which made Pete whisper HIS own fasciantion with them.
So, since Charlotte was once his wife, does that mean she's 500 years old too?
Besides being a Buffy joke, I wondered if the vampire bit was also an allusion to Chelsea Quinn Yarbo's long-running series of novels in which Saint-Germain is a vampire . . . .