Cast members from Buffy the Vampire Slayer, Gossip Girl and more paid tribute to the actress.

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

Michelle Trachtenberg's Buffy the Vampire Slayer costars are pouring their hearts out in the wake of her tragic death ...

David Boreanaz and Ed Westwick are among Michelle Trachtenberg's famous castmates who have spoken out following her tragic ...

Michelle Trachtenberg is being remembered for the positive energy she brought to set by many of the stars she worked with ...

Members of the 'Buffy The Vampire Slayer' cast have paid tribute to "little sister" Michelle Trachtenberg after her death ...

Nicholas Brendon and Alyson Hannigan has shared emotional tributes to their late Buffy the Vampire Slayer co-star Michelle ...

Alyson Hannigan says Michelle Trachtenberg "brought a loving energy" to 'Buffy The Vampire Slayer'. The 50-year-old actress - ...

Actor Melissa Gilbert, who acted alongside Trachtenberg in A Holiday for Love, honored the late star on Instagram by sharing ...

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

Check out the emotional tribute posts that Michelle Trachtenberg’s Buffy the Vampire Slayer co-stars shared after her passing.