NEW YORK -- Michelle Trachtenberg, celebrated for her roles in iconic 1990s and early 2000s productions, has died at the age of 39. Known for her performances in the film 'Harriet the Spy' and popular television series 'Buffy the Vampire Slayer' and 'Gossip Girl,' Trachtenberg's death was confirmed after police responded to an emergency call at a luxury apartment complex in Manhattan's Hell's Kitchen neighborhood. Upon arrival, officers found Trachtenberg unconscious, and paramedics pronounced her dead at the scene. Authorities have stated that no foul play is suspected and the New York Medical Examiner is currently investigating the circumstances surrounding her passing. Born into the entertainment industry, Trachtenberg began her acting career at a young age, portraying Nona Mecklenberg on Nickelodeon's 'The Adventures of Pete & Pete' from 1994 to 1996. Her breakout role came with the 1996 film adaptation of 'Harriet the Spy,' followed by a role in 'Inspector Gadget' alongside Matthew Broderick. In 2000, Trachtenberg joined the cast of 'Buffy the Vampire Slayer,' playing the character Dawn Summers, the younger sister of Sarah Michelle Gellar's titular character. The actress was vocal in her support of Gellar when allegations of misconduct were raised against the show's creator, Joss Whedon, reflecting on her own experiences in the industry during her teenage years. Trachtenberg's talent was recognized with a Daytime Emmy nomination in 2001 for her work hosting the Discovery Channel's 'Truth or Scare.' She later appeared in notable series such as 'Six Feet Under,' 'Weeds,' and 'Gossip Girl,' where she portrayed the cunning Georgina Sparks. Her performance in 'Gossip Girl' was particularly well-received, earning her a nomination as a TV villain at the Teen Choice Awards in 2012. In addition to her television achievements, Trachtenberg's film credits included roles in 'Ice Princess' and the teen comedy 'EuroTrip,' showcasing her versatility as an actress. She also starred in the 2009 film '17 Again' with Zac Efron and Leslie Mann, and played a significant role in the 2013 movie 'Killing Kennedy,' where she delivered much of her dialogue in Russian, a language she learned from her mother. Trachtenberg's contributions to film and television were celebrated by her peers. Blake Lively expressed her condolences via social media, highlighting Trachtenberg's kindness and deep sensitivity. Other notable figures from Hollywood, including David Boreanaz and Rosie O'Donnell, shared their memories and sentiments regarding her impact on their lives and the industry. Most recently, Trachtenberg hosted the true-crime docuseries 'Meet, Marry, Murder' on Tubi, continuing her legacy of engaging performance. Her passing marks a significant loss to the entertainment community, where she is remembered not only for her talent but also for her genuine spirit and the warmth she brought to her roles. As the investigation continues, details surrounding the cause of her death remain unknown. The family has requested privacy during this difficult time, as fans and friends alike mourn the loss of a beloved figure in pop culture.