Chace Crawford was 20 in Long Lost Son when he played the character 'Matthew Williams'.
That was over 18 years ago in 2006.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 38, and has starred in 18 movies in total, 15 of those since Long Lost Son was released.
In Long Lost Son, I think Chace Crawford looks: