Actress and Buffy the Vampire Slayer alumna Michelle Trachtenberg is set to join the Gossip Girl cast when the show returns in April, reports TV Guide.

Michelle Trachtenberg will play Georgina Sparks, a girl from Serena's (Blake Lively) past. Mischa Barton reportedly turned down this role.

Michelle, 22, is on a career comeback since Buffy and it's starting to take off. She's also starring alongside heartthrob Zac Efron in 17 Again in August.

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