Michelle Trachtenberg, who starred in “Gossip Girl” and “Harriet the Spy,” was found dead in her luxury Midtown Manhattan apartment early Wednesday, police sources said.

Trachtenberg, 39, was found unconscious by her mother inside her Columbus Place apartment at 8 a.m. and died a short time later, the sources said.

Her death is not considered suspicious, sources said.

Trachtenberg was a child actress who starred in “Harriet the Spy” and also starred in “Gossip Girl.”

The young actress earned cult status by playing Buffy’s sister in the last few seasons of “Buffy the Vampire Slayer.”

Originally Published: February 26, 2025 at 1:12 PM EST