Blake Lively is mourning her "fiercely loyal" and "brave" Gossip Girl costar Michelle Trachtenberg after her death at age 39.

Michelle Trachtenberg, star of film and television projects like 'Gossip Girl' and 'EuroTrip,' has died at the age of 39, ...

Blake Lively, Rosie O’Donnell lead tributes to Gossip Girl and Harriet the Spy star - Kim Cattrall, Kenan Thompson and ...

Actress Michelle Trachtenberg shot to fame as a child star at age 3, starring as Nona Mecklenberg on the hit Nickelodeon ...

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Michelle Trachtenberg's breakthrough performance came with the 1994 TV show The Adventures of Pete & Pete on Nickelodeon ...

Michelle Trachtenberg's cause of death has been announced following her tragic death aged just 39. Known for her memorable ...

Michelle Trachtenberg's death Wednesday left her former co-stars like Blake Lively, Rosie O'Donnell, Melissa Gilbert and ...

Michelle Trachtenberg, an American actor known for her roles in the television series "Buffy the Vampire Slayer" and "Gossip ...

Michelle Trachtenberg, the actor known for roles in series including "Buffy the Vampire Slayer" and "Gossip Girl," has died.

Michelle Trachtenberg has died at age 39. The star of Gossip Girl and Buffy The Vampire Slayer passed away in her home. Here's what we know.

Buffy the Vampire Slayer star Michelle Trachtenberg has sadly passed away, aged 39. Her cause of death is still under ...