Ruairi O'Connor was 20 in What Richard Did when he played the character 'Niall'.
That was over 12 years ago in 2012.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 32, and has starred in 9 movies in total, 6 of those since What Richard Did was released.
In What Richard Did, I think Ruairi O'Connor looks: