Michelle Christine Trachtenberg (October 11, 1985 – February 26, 2025) was an American television and film actress. She is known for her roles as Dawn Summers in the television series Buffy the Vampire Slayer (2000–03) and as Georgina Sparks in Gossip Girl (2007–2012), and in the films Harriet the Spy (1996); Inspector Gadget (1999); EuroTrip (2004); Ice Princess (2005); Black Christmas (2006) and 17 Again (2009).
Spyral
Michelle Cody White (voice)
2024
Unicorn Boy
Violet (voice)
2023
Meet, Marry, Murder
Self - Host · (13 episodes)
2021
Gossip Girl
Georgina Sparks · (2 episodes)
2021
Celebrity Wheel of Fortune
Self - Contestant · (1 episode)
2021
Showbiz Kids
Self (archive footage)
2020
Human Kind Of
Judy (voice) · (21 episodes)
2018
Sister Cities
Dallas Baxter
2016
The Christmas Gift
Megan
2015
Guidance
Anna · (30 episodes)
2015
The Scribbler
Alice
2014
Last Week Tonight with John Oliver
Voice Over (voice) · (1 episode)
2014
Killing Kennedy
Marina Oswald
2013
Sleepy Hollow
Abigail Adams · (1 episode)
2013
Hollywood Game Night
Self · (1 episode)
2013
Sexy Evil Genius
Miranda Prague
2013
Love Bites
Jodie · (1 episode)
2011
Take Me Home Tonight
Kitchelle Storms
2011
DC Showcase Original Shorts Collection
Bar Girl (segment "Jonah Hex") (voice)
2010
DC Showcase: Jonah Hex
Bar Girl (voice)
2010
Cop Out
Ava
2010
Teenage Paparazzo
Self (uncredited)
2010
Mercy
Chloe Payne · (22 episodes)
2009
NCIS: Los Angeles
Lily Lockhart · (1 episode)
2009
The Super Hero Squad Show
Valkyrie · (52 episodes)
2009
Watch What Happens Live with Andy Cohen
Self - Guest · (1 episode)
2009
17 Again
Maggie O'Donnell
2009
Late Night with Jimmy Fallon
Self · (1 episode)
2009
Against the Current
Suzanne
2009
The Circuit
Kylie Shines
2008
Dragonlance: Dragons of Autumn Twilight
Tika (voice)
2008
Gossip Girl
Georgina Sparks · (28 episodes)
2007
May All Your Christmases Be Black
Self
2007
Black Christmas
Melissa Kitt
2006
Beautiful Ohio
Sandra
2006
The Hills
Herself · (1 episode)
2006
Criminal Minds
Diane Turner · (2 episodes)
2005
Weeds
Emma Karlin · (5 episodes)
2005
The Dive from Clausen's Pier
Carrie Beal
2005
Mysterious Skin
Wendy Peterson
2005
Ice Princess
Casey Carlyle
2005
House
Melinda Bardach · (1 episode)
2004
EuroTrip
Jenny
2004
Best Week Ever
(3 episodes)
2004
On Air with Ryan Seacrest
Self · (1 episode)
2004
Punk'd
Self · (1 episode)
2003
Jimmy Kimmel Live!
(1 episode)
2003
Truth or Scare
Self - Host · (20 episodes)
2001
Law & Order: Criminal Intent
Lisa Willow Tyler · (1 episode)
2001
Six Feet Under
Celeste · (4 episodes)
2001
Can't Be Heaven
Julie
2000
A Father's Choice
Kelly McClain
2000
Inspector Gadget
Penny
1999
Richie Rich's Christmas Wish
Gloria
1998
Guys Like Us
Katie · (13 episodes)
1998
The Wonderful World of Disney
(1 episode)
1997
Meego
Maggie Parker · (13 episodes)
1997
The View
Self · (1 episode)
1997
Buffy the Vampire Slayer
Dawn Summers · (66 episodes)
1997
A Holiday for Love
Noelle Murphy
1996
Blue's Clues
(1 episode)
1996
Harriet the Spy
Harriet M. Welsch
1996
The Rosie O'Donnell Show
Self - Guest · (1 episode)
1996
Space Cases
(1 episode)
1996
MADtv
Self · (1 episode)
1995
Melissa
Lena
1995
The Adventures of Pete & Pete: Halloweenie
Nona Mecklenberg
1994
The Adventures of Pete & Pete
Nona Mecklenberg · (14 episodes)
1993
Dave's World
Angela · (1 episode)
1993
Late Night with Conan O'Brien
Self - Guest · (1 episode)
1993
Law & Order
Dinah Driscoll (uncredited) · (1 episode)
1990
Reading Rainbow
Herself - Narrator (voice) · (1 episode)
1983