Yancy Butler was 7 in Savage Weekend when she played the character 'Little Girl'.
That was over 45 years ago in 1979.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 53, and has starred in 40 movies in total, 39 of those since Savage Weekend was released.
In Savage Weekend, I think Yancy Butler looks: