Michelle Trachtenberg, the beloved actress known for her roles in Gossip Girl, Buffy the Vampire Slayer, and Harriet the Spy, has passed away at the age of 39. The New York City medical examiner confirmed on April 16, 2025, that her death resulted from complications related to diabetes. Trachtenberg was found unresponsive in her Manhattan luxury apartment on February 26, 2025, prompting an investigation that initially deemed her death as 'undetermined' with no foul play suspected.
In the weeks following her passing, the medical examiner's office conducted a thorough review of laboratory test results, which led to the confirmation of diabetes as the cause of death. At the time of her discovery, officials noted that her family had opted against an autopsy, a decision the medical examiner respected due to the absence of any evidence suggesting criminal activity.
Michelle Christine Trachtenberg was born on October 11, 1985, and began her career in television commercials at the tender age of three. She quickly rose to fame as Nona Mecklenberg on Nickelodeon’s The Adventures of Pete & Pete from 1994 to 1996. Her breakout role came when she starred as the titular character in Harriet the Spy and later as Dawn Summers in Buffy the Vampire Slayer from 2000 to 2003. Her performance on the iconic series earned her multiple awards and nominations, solidifying her place in television history.
Throughout her career, Trachtenberg showcased her versatility in various roles. She appeared in critically acclaimed series such as Six Feet Under and Weeds, and her portrayal of Georgina Sparks in Gossip Girl became a fan favorite, leading to her reprising the role in the show's 2021 revival. Her film credits include notable works like EuroTrip (2004), Ice Princess (2005), and 17 Again (2009).
Following the announcement of her death, many celebrities expressed their condolences and shared their memories of Trachtenberg. Sarah Michelle Gellar, her co-star from Buffy the Vampire Slayer, was among the first to mourn her passing. Gellar described the news as “horrible” and expressed her deep sadness over the loss. Likewise, Blake Lively and Taylor Momsen joined the chorus of tributes, highlighting the impact Trachtenberg had on their lives and careers.
David Boreanaz, another co-star from Buffy the Vampire Slayer, shared his grief, stating, “It is so very sad... horrible news.” Alyson Hannigan, who played Willow in the same series, took to Instagram to express her sorrow: “I am deeply saddened by the news of Michelle’s passing. She brought a loving energy to the set of Buffy. My thoughts are with Michelle’s family and friends.”
Trachtenberg’s career spanned decades, showcasing her talent not only in front of the camera but also behind it. In the 2010s, she took on roles in television films such as Killing Kennedy (2013) and Sister Cities (2015), while also exploring producing opportunities with series like Guidance and Meet, Marry, Murder. Her accomplishments included receiving a Young Artist Award for her performance in CBS’s Meego and a Daytime Emmy nomination for hosting Truth or Scare.
As news of her passing circulated, fans and colleagues alike reflected on the indelible charm and talent Trachtenberg brought to her roles. She was remembered not just for her on-screen performances but also for her warm personality and the joy she spread to those around her.
Michelle Trachtenberg leaves behind a rich legacy that touched audiences worldwide. Her contributions to television and film will be cherished by fans for years to come. In a statement, her representative did not immediately provide further comment following the medical examiner’s updated announcement.
As the entertainment industry mourns the loss of a talented actress, Michelle Trachtenberg’s impact on her peers and her audience remains evident. She will be remembered not only for her iconic roles but also for the positive energy she brought to every project she undertook.