Sarah Michelle Gellar took a walk down memory lane in honor of her late friend and co-star Michelle Trachtenberg.

Cast members of "Buffy the Vampire Slayer," "Gossip Girl" and more are remembering their co-star Michelle Trachtenberg​ after ...

Actor Sarah Michelle Gellar paid tribute to her “Buffy the Vampire Slayer” costar Michelle Trachtenberg on Thursday, a day ...

Michelle Trachtenberg’s former “Buffy the Vampire Slayer” costar Sarah Michelle Gellar is looking back at their time together ...

Sarah Michelle Gellar was seen for the first time since the death of her Buffy the Vampire Slayer co-star, Michelle ...

Sarah Michelle Gellar is paying tribute to her 'Buffy the Vampire Slayer' costar Michelle Trachtenberg after her death at 39: ...

The NYPD confirmed to PEOPLE that Trachtenberg was found "unconscious and unresponsive" in her Manhattan apartment on ...

Sarah Michelle Gellar is paying tribute to her late "Buffy the Vampire Slayer" co-star Michelle Trachtenberg after her tragic ...

Sarah Michelle Gellar has paid tribute to her former Buffy The Vampire Slayer co-star Michelle Trachtenberg following her ...

Michelle Trachtenberg, who starred in 'Harriet the Spy,' 'Buffy the Vampire Slayer' and 'Gossip Girl,' was found dead in her ...

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

When the series shifted from the WB to UPN for its sixth season, fans were treated to one of its most innovative episodes: ...