The task is an important one. UNICEF has been fighting to raise awareness of areas where children are suffering, such as Syria, Yemen and Nigeria.
The United Nations called 2017 a “nightmare year” for children in conflict. In a report, UNICEF described the “shocking scale” of harm that the children had faced within a year.
Brown was nominated for an Emmy last year for her role as Eleven in “Stranger Things,” the popular Netflix sci-fi series. Its third season is expected in 2019.