Oz Perkins was 8 in Psycho II when he played the character 'Young Norman'.
That was over 41 years ago in 1983.
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 16 movies in total, 15 of those since Psycho II was released.
In Psycho II, I think Oz Perkins looks: