Blake Lively, Sarah Michelle Gellar and other Hollywood figures are paying tribute to Michelle Trachtenberg, who died at 39.

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

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

Michelle Trachtenberg, known for her memorable roles in Buffy the Vampire Slayer and Gossip Girl, tragically passed away on ...

After news of actress Michelle Trachtenberg’s death was made public, friends and former co-stars have shared stories of ...

Actor Michelle Trachtenberg's death at age 39 sparked many tributes from her former co-stars and friends. Here are some of ...

Michelle Trachtenberg’s sudden death left an empty hole in the hearts of fans and former costars whom she worked with ...

Blake Lively, Sarah Michelle Gellar and others who worked with Michelle Trachtenberg remembered the “loving” and “electric” ...

Buffy the Vampire Slayer" star Sarah Michelle ... herself.” — Blake Lively, Trachtenberg's ”Gossip Girl" co-star, on Instagram. “Rest in peace sweet Michelle” — Kim Cattrall on Instagram.