Michelle Trachtenberg, who starred in 'Harriet the Spy,' 'Buffy the Vampire Slayer' and 'Gossip Girl,' died Wednesday at 39.

Michelle Trachtenberg, a onetime child actor who starred in “Harriet ... which she starred in alongside Rosie O’Donnell, Gregory Smith and J. Smith-Cameron. Michelle Trachtenberg’s first ...

She got her start in the film “Harriet the Spy” and the Nickelodeon show “The Adventures of Pete & Pete” before moving on to more adult roles.

Blake Lively, Sarah Michelle Gellar and other Hollywood figures are paying tribute to Michelle Trachtenberg, who died at 39.

Famous friends and colleagues are mourning the death of Michelle Trachtenberg, a former child star and actor ... alongside Rosie O’Donnell, Gregory Smith and J. Smith-Cameron.

Michelle Trachtenberg, the actress who rose to fame as a precocious child star in “Harriet the ... the screen with Rosie O’Donnell, young Gregory Smith and J. Smith-Cameron, who would go ...