Rory Cochrane was 18 in A Kiss Before Dying when he played an uncredited character.
That was over 33 years ago in 1991.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 52, and has starred in 33 movies in total, 31 of those since A Kiss Before Dying was released.
In A Kiss Before Dying, I think Rory Cochrane looks: