"Sending prayers," the actor behind Chuck Bass wrote.Ed Westwick is mourning the death of his Gossip Girl costar Michelle ...

Michelle Trachtenberg's death at 39, which definitely took the public by surprise. Celebrity tributes to Trachtenberg have ...

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

Michelle Trachtenberg underwent a liver transplant shortly before her death at age 39, a source told NBC New York. It’s not ...

Michelle Trachtenberg's former co-stars from “Gossip Girl” and "Buffy the Vampire Slayer" paid tribute to the actress ...

Michelle Trachtenberg's cause of death remains 'undetermined' after the 'Gossip Girl' and 'Buffy' star's family objected to ...

Michelle Trachtenberg played Georgina Sparks on ‘Gossip Girl’ from 2008 to 2012, and became friendly with several costars ...

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

Sarah Michelle Gellar, Taylor Momsen and Blake Lively are among those paying tribute to Michelle Trachtenberg, who died ...

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

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

Michelle Trachtenberg was not interested in wading into the legal waters surrounding her Gossip Girl costar Blake Lively in ...