Daniel Radcliffe as a sullen vampire on 'The Simpsons'? Was Rob Pattinson busy?

robert-pattinson-dan-radcliff-simpsons.jpgAttention, Potter People! "Harry Potter" star Daniel Radcliffe will guest on "The Simpsons" Nov. 7 as part of the show's annual "Treehouse of Horror" episode.

But Daniel won't play the bespectacled boy wizard. Instead he's taking on Robert Pattinson's "Twilight" alter ego,  "a sullen teenage vampire" modeled after Edward Cullen but named "Edmund" on the show's tribute to "Twilight."

Oh, snap! 

As previously reported on Zap2it, Lisa Simpson will (just like Kristen Stewart's Bella Swan) fall madly in love with Edmund, but Homer will save her from becoming a vampire herself. No news on whether Jacob ( Taylor Lautner) will turn up shirtless. But it would be very funny.