Charisma Carpenter by Jesse Grant/WireImage.com
Charisma Carpenter is heading back to college.

The onetime Buffyverse vixen has been tapped to guest-star on the season finale of ABC Family's newest soapy treat Greek. She'll play a national sorority representative who shows up to investigate a big, juicy scandal.

"She's part Scully and part Cordelia," explains Greek creator Sean Smith of Carpenter's snarky sleuth, who arrives for the mid-September finale and, assuming the show gets renewed, could very well return for Season 2. "I'd love to have her back," says Smith.

BTW, the first four episodes of Greek are making their way to my New York office as we speak. I'm anxious to see what all the fuss is about.