Sarah Chalke was 16 in Beyond Obsession when she played an uncredited character.
That was over 30 years ago in 1994.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 47, and has starred in 34 movies in total, 33 of those since Beyond Obsession was released.
In Beyond Obsession, I think Sarah Chalke looks: