Skeet Ulrich was 18 in Weekend at Bernie's when he played the character 'Extra (uncredited)'.
That was over 35 years ago in 1989.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 54, and has starred in 32 movies in total, 28 of those since Weekend at Bernie's was released.
In Weekend at Bernie's, I think Skeet Ulrich looks: