Jeri Ryan was 22 in Nightmare in Columbia County when she played the character 'Dawn Elizabeth Smith'.
That was over 32 years ago in 1991.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 55, and has starred in 19 movies in total, 17 of those since Nightmare in Columbia County was released.
In Nightmare in Columbia County, I think Jeri Ryan looks: