Episode 116 of "Buffy, the Vampire Slayer"
s06e16 Hell's bells
Title: Hell's bells
Original Air Date: 03/05/2002 on UPN
Director: David Solomon
Writer: Rebecca Rand Kirshner
Guest Stars: Casey Sander (Tony Harris), Andy Umberger (D'Hoffryn), Abigail Mavity (Sara age 8), Rebecca Jackson (Tarantula), Mel Fair (Tentacle Demon), Nick Kokich (Demon Teen), Robert Noble (Night Manager), Julian Franco (Young Bartender), Susannah L. Brown (Caterer Girl), Joey Hiott (Josh age 10), Chris Emerson (Josh age 21), Ashleigh Ann Wood (Sara age 18), Megan Vint (Karen), Lee Garlington (Jessica Harris), Jan Hoag (Cousin Carol), George D. Wallace (Future Xander), Steven Gilborn (Uncle Rory)
Plot Outline:
The day of the wedding has finally come and Xander and Anya are preparing for the hoards of "guests" to arrive. While Xander's screwed up human family go head to head with Anya's mostly non-human friends, a special guest approaches Xander to warn him that his life with Anya may not turn out to be the married bliss he has hoped for.