Michelle Trachtenberg (; born October 11, 1985) is an American actress and model. Starting her career at a young age, she has played in a number of commercials, films, and television series. She is best known for her regular role as Dawn Summers in Buffy the Vampire Slayer (2000–2003) and recurring roles as Georgina Sparks in Gossip Girl (2007–2012), and Nona Mecklenberg in The Adventures of Pete & Pete (1994–1996), and for her role as Harriet M. Welsch in Harriet the Spy (1996).
