BTW, the ever-increasing roster of "special guest stars" means, one way or the other, this show will be a hit.
Either nobody wants to see another show about impossibly good-looking "teens" with impossibly non-existent parents enjoying impossibly rich sex lives and the CW morphs the show into a middle-aged version of 90210 (a la what Fox did with Melrose Place and turned it from a Gen X soap opera into Dallas on crack when the ratings lagged in the middle of the first year). Or there's more room on the schedule for impossibly good-looking "teens" with impossibly non-existent parents enjoying impossibly rich sex lives and the reality is guest spots by Garth/Doherty/Ziering/et al are more pathetic than nostalgic.