Shawn Roberts was 12 in Goosebumps: The Perfect School when he played the character 'Brian O'Connor'.
That was over 27 years ago in 1997.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 40, and has starred in 42 movies in total, 41 of those since Goosebumps: The Perfect School was released.
In Goosebumps: The Perfect School, I think Shawn Roberts looks: