Actress Michelle Trachtenberg, known for her roles in "Harriet the Spy" and "Gossip Girl," has died. She was 39.

Gossip Girl' fame actor, Michelle Trachtenberg was recently found dead at her New York City apartment, which has left ...

Michelle Trachtenberg's co-stars and fellow celebrities are speaking out after the "Gossip Girl" and "Harriet the Spy" star ...

Blake Lively is paying tribute to her late co-star. Michelle Trachtenberg, 39, died on Wednesday, leading many fans and celebrities alike to honor her memory, including many of her co-stars across ...

Blake Lively, who co-starred with Michelle Trachtenberg on the teen drama "Gossip Girl," paid tribute to the late actress on ...

Michelle Trachtenberg, the beloved actress known for her roles in Gossip Girl and Buffy the Vampire Slayer, has passed away ...

Michelle Trachtenberg's credits include performances in 'Harriet The Spy,' 'Mysterious Skin' & 'Buffy The Vampire Slayer' ...

Trachtenberg starred in a number of children's movies before getting a breakout role as Dawn in "Buffy the Vampire Slayer." ...

Michelle Trachtenberg, a former child star who appeared in the 1996 ''Harriet the Spy'' hit movie and went on to co-star in two buzzy millennial-era TV shows — ''Buffy the Vampire Slayer'' and ...

Blake Lively posted a tribute on her Instagram Story for 'Gossip Girl' Co-Star Michelle Trachtenberg after her death.