audience. Whedon cited films by Steven Soderbergh as his main inspirations for the odd editing, especially The Limey and The Underneath. He also listed Orson Welles' version of The Trial and Stanley Kubrick's Eyes Wide Shut as inspirations for many of his shooting and editing decisions. Cast Besides the main cast, the episode features several appearances by returning and currently recurring characters, mostly within the dream sequences. Seth Green, who left the series earlier in the season, makes a brief appearance as Oz in Willow's dream. Armin Shimerman, whose character Principal Snyder was killed off in the season three finale, appears as Kurtz in the Apocalypse Now scene. Amber Benson appears as Tara in the dream sequences, as both Willow's girlfriend and a spirit guide to Buffy. Whedon commented on her appearances in Buffy's dream: "The idea that Tara would be her spirit guide made sense because she didn't have that particular relationship with Tara, and Tara has a kind of good Wiccan mystical energy." George Hertzberg appears as Adam, although in human form rather than in the demon/cyborg makeup he had appeared in throughout the season. Mercedes McNab appears as Harmony Kendall is present during Willow's dream as both an ordinary classmate and an inept vampire. Phina Oruche appears as Olivia in Giles's dream heavily pregnant and pushing a baby stroller. Kristine Sutherland appears as Joyce Summers, Buffy's mother. Whedon enjoyed that she got "to play just completely sexy [in Xander's dream], because when you play the mom on a show you're sort of relegated to momhood, so it was nice to see that side of her." It was during the filming of this episode that Michelle Trachtenberg, who would go on to play Buffy's sister Dawn in season five, first visited the set. Sarah Michelle Gellar had worked with her previously and suggested to Joss Whedon that she read for the part of Dawn. Music In Giles' dream, actor Anthony Stewart Head sings "The Exposition Song"; this was the third time he sang during the season. The song was written by Joss Whedon, arranged by composer Christophe Beck, and performed by Four Star Mary. Beck appears in the scene playing the piano, while members of Four Star Mary play the other instruments. From seasons two to four of the series, Four Star Mary were the real band behind character Oz's fictional band, Dingoes Ate My Baby. Analysis Each