Once More, with Feeling (Buffy the Vampire Slayer) theaters with the audience invited to sing along. Throughout the series Buffy Summers (Sarah Michelle Gellar), in her role as the Vampire Slayer, is assisted by her close friends, who refer to themselves as the "Scooby Gang". These include Xander Harris (Nicholas Brendon), a young man without particular strengths or talents, but devoted to Buffy and her calling, and Willow Rosenberg (Alyson Hannigan), a young woman who has grown from a shy but gifted student into a strong woman and powerful user of magic. They are mentored by Buffy's "Watcher", Rupert Giles (Anthony Stewart Head), a paternal figure since the
Buffy the Vampire Slayer was going to play the rest of the scene, and the role, for that matter, and defined the character. Her approach subsequently got her the role. The "Buffy" opening sequence provides credits at the beginning of each episode, with the accompanying music performed by Californian rock band Nerf Herder. In the DVD commentary for the first "Buffy" episode, Whedon said his decision to go with Nerf Herder's theme was influenced by Hannigan, who had urged him to listen to the band's music. Janet Halfyard, in her essay "Music, Gender, and Identity in "Buffy the Vampire Slayer" and "Angel"," describes the