Buffy’s back!...Oh, wait…she’s not Buffy? Well fine, Sarah Michelle Gellar is making her glorious return to television in the CW’s new noir style fall series, ‘Ringer’. Gellar will be playing Bridget Cafferty, a recovering drug addict/stripper/prostitute. She will also be playing her identical twin sister, Siobhan Martin, a wealthy New York elite with plenty of her own secrets.