Rae Dawn Chong was 16 in Stony Island when she played an uncredited character.
That was over 45 years ago in 1978.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 63, and has starred in 60 movies in total, 59 of those since Stony Island was released.
In Stony Island, I think Rae Dawn Chong looks: