Cree Summer was 15 in Care Bears Movie II: A New Generation when she played the character 'Christy (voice)'.
That was over 38 years ago in 1986.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 54, and has starred in 61 movies in total, 58 of those since Care Bears Movie II: A New Generation was released.
In Care Bears Movie II: A New Generation, I think Cree Summer looks: