United Kingdom, March 19 -- Mara Wilson felt "completely isolated" following her years of child stardom.

The 37-year-old actress - who was speaking out following the death of fellow child star Michelle Trachtenberg - is best known for playing the title role of 'Matilda' in the late 1990s but admitted that she was left "bitter and furious" during her teenage years as she was bullied by her high school classmates.

Writing in an essay for Vulture, she explained: "At the time, I was fortunate: I had supportive teachers and a solid friend group.

"When I started high school a few years later, though, both my friend group at school and my crew of child actors splintered, and I found myself in the same place Michelle [Trachtenberg] had been. I...