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.
Michelle Trachtenberg attends Christian Siriano’s 15 Year Anniversary Celebration at Nic’s On Beverly on November 2, 2023 in Los Angeles, California. (Photo by Presley Ann/Getty Images for Christian Siriano)
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.”
Rosie O’Donnell and Michelle Trachtenberg star in the first Nickolodeon movie, “Harriet the Spy.” (Getty Images)
(L-R) Actors Jessica Szohr, Blake Lively, Leighton Meester, costume designer Eric Daman, and actors Michelle Trachtenberg, Ed Westwick and Sebastian Stan attend the “You Know You Want It” publication celebration at Henri Bendel on January 12, 2010 in New York City. (Photo by Andrew H. Walker/Getty Images)
Originally Published: February 26, 2025 at 1:04 PM EST