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

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

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

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

Gossip Girl and Buffy the Vampire Slayer actress Michelle Trachtenberg, 39, was found dead Wednesday, February 26, in her New ...

Let's take a look at all the Hollywood celebrities Gossip Girl actor Michelle Trachtenberg, has dated over the course of her ...

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.

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The Gossip Girl alum Blake Lively has paid a touching tribute to her 'fiercely loyal' friend, Michelle Trachtenberg.

Blake Lively has remembered Michelle Trachtenberg as a "kind person through and through" following her death as she pays ...