Karl Urban was 18 in Chunuk Bair when he played the character 'Wellington soldier'.
That was over 32 years ago in 1992.
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 39 movies in total, 38 of those since Chunuk Bair was released.
In Chunuk Bair, I think Karl Urban looks: