Kim Cattrall, Blake Lively, and numerous more celebrities are posting tributes for Michelle Trachtenberg after news broke ...

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

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

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

Michelle Trachtenberg's co-stars and fellow celebrities are speaking out after the "Gossip Girl" and "Harriet the Spy" star ...

Kim Cattrall paid tribute to Michelle Trachtenberg following her death at age 39. "Rest in peace sweet Michelle 💔," Cattrall ...

After the news of Michelle Trachtenberg's death, former co-stars and celeb friends like Kim Cattrall and Kenan Thompson paid ...

From Ed Westwick to David Boreanzaz, how the casts of Gossip Girl, Buffy, and more are paying tribute to Michelle ...

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

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