Actress Michell Trachtenberg has died at the age of 39. Trachtenberg got her start in acting as a child, appearing in her first commercial at 3 years old and had roles in “Harriet the Spy” opposite Rosie O’Donnell, “Buffy the Vampire Slayer” and “Gossip Girl.” NYPD officers responded to a 911 call on Wednesday and found Trachtenberg unresponsive in a #NewYorkCity apartment. A representative for the actress said in a statement to CBS News: “It is with great sadness to confirm that Michelle Tracht