Former Buffy star Sarah Michelle Gellar has not ruled out making a guest appearance on Angel's upcoming series finale. "I go back and forth on the idea, especially because Angel had such a hard time, in my opinion, getting out from Buffy's shadow," she tells SCI FI Wire. "And it never got to stand on its own. And I would hate for it to go out being about Buffy." One key factor sure to impact her decision: Gellar, currently in Tokyo shooting the horror film The Grudge, might not be home in time for Angel's last stand. What's more, the erstwhile Chosen One claims no one has approached her — which sounds a little shady considering what Joss Whedon told me last month.