United Kingdom, Aug. 23 -- Sophie Turner fears for young stars due to the toxicity of social media.

The 29-year-old actress was just 13 when she was cast in the HBO fantasy series Game of Thrones and admits that she is concerned about performers who are thrust into the spotlight at an early age because of the cruel nature of the online sites.

Sophie told Flaunt magazine: "I look at the kids who are about to be in the new Harry Potter and I just want to give them a hug and say, 'Look, it's going to be okay but don't go anywhere near (social media).'

"Stay friends with your home friends, keep living at home with your family, make sure your parents are your chaperones - it's so important to have that grounding adjacent to the big, crazy s...