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 ...

Michelle Trachtenberg's cause of death was ruled "undetermined" by the Office of Chief Medical Examiner in New York City, Fox ...

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

Blake Lively remembered her “Gossip Girl” costar as a “deeply sensitive and good person.” ...

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

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

"The hardest thing in this world, is to live in it. I will be brave. I will live... for you," the actress shares after her co ...

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

Ed Westwick has led celebrity tributes to actress Michelle Trachtenberg. The 37- year-old actor played Chuck Bass in Gossip ...

The Gossip Girl family is mourning Michelle Trachtenberg. Chace Crawford, who played Nate Archibald on the CW show, posted a ...

Rosie O’Donnell, who starred alongside Trachtenberg in the starlet’s first movie, the Nickelodeon-produced 1996 film ...