Nikolaj Lie Kaas was 17 in The Boys from St. Petri 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 51, and has starred in 54 movies in total, 52 of those since The Boys from St. Petri was released.
In The Boys from St. Petri, I think Nikolaj Lie Kaas looks: