Buffy's Sarah Michelle Gellar has paid an emotional tribute to co-star Michelle Tratchenberg, who passed away at the age of 39.

Sarah Michelle Gellar paid tribute to the late Michelle Trachtenberg after the actress died at age 39.

Trachtenberg came forward against Whedon after Gellar’s post and thanked her co-star for her statement. “Thank you @sarahmgellar for saying this. I am brave enough now as a 35 year old woman … To ...

Sarah Michelle Gellar and other 'Buffy the Vampire' stars paid tribute to Michelle Trachtenberg, who tragically passed away on Wednesday,6.

Michelle Trachtenberg's former "Buffy the Vampire Slayer" costar Sarah Michelle Gellar is looking back at their time together ...

The NYPD confirmed to PEOPLE that Trachtenberg was found "unconscious and unresponsive" in her Manhattan apartment on Wednesday, Feb. 26 and pronounced dead at the scene ...

Rosie O’Donnell, Blake Lively and Kim Cattrall are among Trachtenberg’s former co-stars who paid tribute to her.

Sarah Michelle Gellar is reacting to the death of her former Buffy the Vampire Slayer co-star Michelle Trachtenberg.

also mourned the actress Wednesday, along with many others. A post shared by Sarah Michelle (@sarahmgellar) ...

Michelle Trachtenberg, who played Buffy's younger sister Dawn Summers in the beloved series Buffy The Vampire Slayer, as well as Georgina Sparks in the teen drama Gossip Girl, was found dead in her ...

Actress Sarah Michelle Gellar starred in Buffy The Vampire Slayer alongside Michelle Trachtenberg, who played Buffy's younger sister Dawn Summers in the hit 90s and 00s TV series ...

When Gellar wrote that she stood “with all survivors of abuse and am proud of them for speaking out,” on Instagram, Trachtenberg commented: “Thank you @sarahmgellar for saying this.