Jessalyn Gilsig was 16 in Jacknife when she played the character 'His Girlfriend'.
That was over 35 years ago in 1989.
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 20 movies in total, 19 of those since Jacknife was released.
In Jacknife, I think Jessalyn Gilsig looks: