BBC News
By Amber Sandhu
image captionMy Mum Tracy Beaker is told from the perspective of her daughter Jess
As Tracy Beaker, Dani Harmer has played one of the most iconic roles in children's TV for nearly two decades.
CBBC says her most recent three-part series, My Mum Tracy Beaker, has been its most successful programme launch ever.
But Dani says abusive online comments she's received about her appearance has taken some of the shine off its success.
"It shouldn't affect me but I'm a human being," she tells Radio 1 Newsbeat.
Although she says the overwhelming majority of opinions have been positive, a small minority are "horrible" and are the ones she thinks about when she goes to bed.