Robbie Amell was 16 in Cheaper by the Dozen 2 when he played the character 'Daniel Murtaugh'.
That was over 18 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 36, and has starred in 26 movies in total, 24 of those since Cheaper by the Dozen 2 was released.
In Cheaper by the Dozen 2, I think Robbie Amell looks: