Blake Lively, Rosie O’Donnell lead tributes to Gossip Girl and Harriet the Spy star - Kim Cattrall, Kenan Thompson and ...

WWD via Getty Images Michelle Trachtenberg at the 15 Years of Siriano Party at ... and unresponsive" in New York City on ...

Trachtenberg rose to fame as a child star in the 1996 movie Harriet the Spy. She went on to join the cast of Buffy the Vampire Slayer as Sarah Michelle Gellar’s sister, Dawn, and was a fan favorite ...

Gossip Girl star Michelle Trachtenberg was discovered unresponsive in her New York City apartment on Wednesday morning.

Michelle Trachtenberg, a former child star who appeared in the 1996 “Harriet the Spy” hit movie and went on to co-star in two ...