Caleb Landry Jones was 16 in No Country for Old Men when he played the character 'Boy on Bike'.
That was over 16 years ago in 2007.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 34, and has starred in 35 movies in total, 31 of those since No Country for Old Men was released.
In No Country for Old Men, I think Caleb Landry Jones looks: