Currently shooting the sequel to the “Scooby Doo” movie in Vancouver, Canada, actress Sarah Michelle Gellar revealed to Extratv.com that she’ll have a guest role on The Simpsons next season. That’s all we know at the moment, but when we learn more details regarding this we’ll let you know. Other guest stars lined up for Season 15 include Simon Cowell, Tony Blair, Ian McKellen, J.K. Rowling, Jerry Lewis, Jennifer Garner, and possibly Glenn Close & Jackie Mason reprising their roles as Mother Simpson and Rabbi Krustofsky, respectively.
