Sydney Penny was 6 in The Night Rider when she played the character 'Melissa Hollister'.
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 52, and has starred in 25 movies in total, 25 of those since The Night Rider was released.
In The Night Rider, I think Sydney Penny looks: