News of Michelle Trachtenberg's death prompted tributes from her friends and former "Buffy," "Harriet the Spy," and "Gossip ...

Blake Lively, Sarah Michelle Gellar, David Boreanaz, Ed Westwick, Kim Cattrall, Kenan Thompson, Melissa Joan Hart and more ...

Sarah Michelle Gellarhas posted a hearbreaking tribute to Michelle Trachtenberg, who played her younger sister Dawn in the TV ...

Gossip Girl' ran for six seasons and starred Blake Lively, Leighton Meester, Penn Badgley and Ed Westwick. Here's what the ...

Weeks before Gossip Girl alum Michelle Trachtenberg died at 39, she celebrated Valentine’s Day with a tribute to her boyfriend Jay Cohen.

Friends and costars of Michelle Trachtenberg are remembering the actress with touching tributes after her passing on ...

Sarah Michelle Gellar has become the latest celebrity to pay tribute to Michelle Trachtenberg following the actresses ...

Gossip Girl' alums Ed Westwick, Chace Crawford, Taylor Momsen, and Kevin Zegers paid tribute to Michelle Trachtenberg after ...

Blake Lively posted a picture with Michelle and penned a long note for her. She wrote, “This is the first day I met Michelle.

Following the heartbreaking news that the “Buffy the Vampire Slayer” star died Wednesday at the age of 39, friends and former colleagues took to social media to honor the late actress.

Kenan Thompson has heaped praise on Michelle Trachtenberg, describing the actress as the "first Nick movie star".