Anthony Edwards was 9 in Big Zapper when he played the character 'Kono's Boy'.
That was over 50 years ago in 1973.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 60, and has starred in 45 movies in total, 44 of those since Big Zapper was released.
In Big Zapper, I think Anthony Edwards looks: