Sarah Michelle Gellar mourned the death of “Buffy the Vampire Slayer" co-star Michelle Trachtenberg in an Instagram post.

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

Trachtenberg, who co-starred with Gellar on the hit TV series, was found dead in her apartment on Tuesday. She was 39.

As Dawn Summers, Michelle Trachtenberg brought tangibility and humanity to Buffy the Vampire Slayer's supernatural world.

Buffy the Vampire Slayer star Seth Green has spoken out about the hit show's upcoming revival and the possibility of an ...

Gellar is honoring her late 'Buffy the Vampire Slayer' costar, who died on Wednesday, February 26, with a powerful quote from ...

Police responding to a call at a residential high-rise building in Manhattan found Trachtenberg unresponsive and emergency ...

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

17 Again can be streamed on the Roku Channel. Trachtenberg joined the cast of Gossip Girl alongside stars Ed Westwick, Penn ...

Michelle Trachetenberg's cause and manner of death will remain undetermined after her family objected to having an autopsy ...

Michelle Trachtenberg, who played Buffy's younger sister Dawn Summers in the beloved series Buffy The Vampire Slayer, as well ...

Following the heartbreaking news that the “Buffy the Vampire Slayer” star died Wednesday at the age of 39, friends and former colleagues took to social media to honor the late actress.