Michelle Trachtenberg's memorable movie and TV roles, including 'Gossip Girl' and 'Buffy' Michelle Trachtenberg, who found fame as a child star, became beloved 'Gossip Girl' actre

The actress, who died at age 39, made her feature debut in the 1996 movie, with filmmaker Bronwen Hughes telling The Hollywood Reporter, "She never had a false note."

In a statement provided to Entertainment Weekly on Wednesday, O'Donnell said of Trachtenberg, "I loved her very much. She struggled the last few years. I wish I could have helped.