Sharlto Copley was 30 in Alive in Joburg when he played the character 'Sniper'.
That was over 19 years ago in 2005.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 50, and has starred in 25 movies in total, 21 of those since Alive in Joburg was released.
In Alive in Joburg, I think Sharlto Copley looks: