Diedrich Bader was 20 in Longarm when he played the character 'Randy'.
That was over 36 years ago in 1988.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 57, and has starred in 77 movies in total, 77 of those since Longarm was released.
In Longarm, I think Diedrich Bader looks: