Michelle Trachtenberg - Buffy The Vampire Slayer (2000 - 2003) Up until 2011, Michelle Trachtenberg kept up her career with roles in hit movies like 17 Again a recurring role as mean girl Georgina on Gossip Girl. But where has Michelle been since?! She will be in a thriller out on May 1 titled The Scribbler. We can't wait to see it! We've missed her!