Barret Oliver was 8 in Knight Rider: Knight of the Phoenix when he played the character 'Buddy'.
That was over 42 years ago in 1982.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 50, and has starred in 13 movies in total, 12 of those since Knight Rider: Knight of the Phoenix was released.
In Knight Rider: Knight of the Phoenix, I think Barret Oliver looks: