"Buffy" star Sarah Michelle Gellar (45) returns to the mystery world: The US actress has landed a role in the "Teen Wolf" offshoot "Wolf Pack" from producer Jeff Davis (47). This was announced by the streaming provider Paramount at Comic-Con in San Diego.

"The secret is officially out! We are beyond honored and excited to welcome the one and only Sarah Michelle Gellar to 'Wolf Pack,'" writes Paramount. According to Variety, Gellar will play fire investigator Kristin Ramsey, a highly respected expert in her field. It stars Armani Jackson, Bella Shepard, Chloe Rose Robertson and Tyler Lawrence Gray. Filming has already started. When the series will be available on Paramount is not yet clear.

Teen Wolf is an offshoot of the werewolf teen drama series based on the book series of the same name by Canadian author Edo van Belkom. It follows two teenagers, Everett (Jackson) and Blake (Shepard), whose lives are changed after a fire in California awakens a supernatural creature. This wounds Everett and Blake, and the two suddenly feel a connection. They team up and meet two other teenagers who went through something similar a few years ago. In the light of the full moon, the four discover their secret: they are werewolves. It's up to Kristin Ramsey (Gellar) to track down the fire devil.