Michelle Trachtenberg’s cause of death has been ruled "undetermined" by the medical examiner. The actress was 39 when she was found dead in an apartment in New York City on Feb. 26.

Michelle Trachtenberg, an actress best known for her roles in "Buffy the Vampire Slayer" and "Gossip Girl," has died at age ...

Michelle Trachtenberg, who starred in 'Harriet the Spy,' 'Buffy the Vampire Slayer' and 'Gossip Girl,' was found dead in her ...