Feb. 26 (UPI) -- Buffy the Vampire Slayer and Gossip Girl actress Michelle Trachtenberg was found dead Wednesday at her New York City apartment.
Police sources confirmed Trachtenberg's death to People, ABC and the New York Post. She was 39.
Trachtenberg had recently undergone a liver transplant. Police said the actress may have experienced complications from the procedure.
Trachtenberg came to fame as a child actor on the Nickelodeon series The Adventures of Pete and Pete, the movie Harriet the Spy, based on the series of books, and the live-action Inspector Gadget movie as his niece, Penny.
She joined the cast of Buffy, the Vampire Slayer in Season 5 as Buffy's (Sarah Michelle Gellar) younger sister Dawn, who magically appeared.
After Buffy, Trachtenberg continued to star in movies like Eurotrip, Ice Princess, Black Christmas and 17 Again. She also had roles on the medical drama Mercy and teen drama Gossip Girl.
In addition to acting, Trachtenberg hosted the true crime series Meet, Marry Murder. She was active on Instagram as recently as Feb. 18.
