Brenton Thwaites was 19 in Charge Over You when he played the character 'Sam'.
That was over 13 years ago in 2010.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 33, and has starred in 18 movies in total, 17 of those since Charge Over You was released.
In Charge Over You, I think Brenton Thwaites looks: