caption years_active birth_place birth_date image article_title birth_name occupation
trachtenberg in june 2008 1991 -- present new york city , new york , u.s. 11 october 1985 trachtenberg -lrb- crop -rrb- . jpg michelle trachtenberg
 michelle christine trachtenberg actress
michelle trachtenberg

michelle christine trachtenberg -lrb- born october 11 , 1985 -rrb- is an american actress .
she is best known for portraying nona f. mecklenberg in `` the adventures of pete & pete '' -lrb- 1994 -- 96 -rrb- , dawn summers in `` buffy the vampire slayer '' -lrb- 2000 -- 03 -rrb- , celeste in `` six feet under '' -lrb- 2004 -rrb- and georgina sparks in `` gossip girl '' -lrb- 2008 -- 12 -rrb- .
she has also appeared in films such as `` harriet the spy '' -lrb- 1996 -rrb- , `` inspector gadget '' -lrb- 1999 -rrb- , `` eurotrip '' -lrb- 2004 -rrb- , `` ice princess '' -lrb- 2005 -rrb- , `` black christmas '' -lrb- 2006 -rrb- , `` 17 again '' -lrb- 2009 -rrb- , `` cop out '' -lrb- 2010 -rrb- and `` killing kennedy '' -lrb- 2013 -rrb- .
