Miko Hughes was 2 in Pet Sematary when he played the character 'Gage Creed'.
That was over 35 years ago in 1989.
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 29 movies in total, 27 of those since Pet Sematary was released.
In Pet Sematary, I think Miko Hughes looks: