Michelle Trachtenberg has died at just 39 years old. The late starlet — who is known for countless film and television roles — was found dead in a New York City apartment on February 26, 2025. Though authorities reportedly are not investigating any foul play in her death, fans were shocked about the news and wondered how the young actress died.

Actress Michelle Trachtenberg has died at 39. Former co-stars from "Buffy the Vampire Slayer" to "Gossip Girl" are remembering her with heartfelt tributes. Here’s what they had to say.

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