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

Lively remembered Trachtenberg as someone who "laughed the fullest at someone's joke" and "faced authority head on when she ...

Michelle Trachtenberg's 'Gossip Girl' co-star Blake Lively posted a tribute to the actress after news of her death.

Trachtenberg starred as the cunning Georgina Sparks on the beloved CW series, appearing in each of the six seasons and ...

The "Gossip Girl" and "Harriet the Spy" alum, who rose to fame as a child star, was found dead in New York City on Wednesday, ...

Michelle Trachtenberg was found in her New York City apartment, and the death is not believed to be suspicious, police said.

Comedian and former Nickelodeon child star Kenan Thompson shared a video on Instagram of the two of them on Nick, writing: ...

Hollywood is paying tribute to Michelle Trachtenberg. The actor who starred in 'Harriet the Spy,' 'Buffy the Vampire Slayer' ...

Michelle Trachtenberg, the actor best known for "Gossip Girl," "Ice Princess" and "Buffy the Vampire Slayer," died at age 39.

Michelle Trachtenberg, who starred in 'Harriet the Spy,' 'Buffy the Vampire Slayer' and 'Gossip Girl,' died Wednesday at 39.

Lively shared a photo of the day she met Trachtenberg, writing, "The world lost a deeply sensitive and good person" ...

Trachtenberg began her career as child actor, notably starring in the big screen adaptation of "Harriet the Spy" in 1996.