Ian McDiarmid was 30 in Amazing Stories when he played the character 'Blade'.
That was over 48 years ago in 1976.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 79, and has starred in 36 movies in total, 34 of those since Amazing Stories was released.
In Amazing Stories, I think Ian McDiarmid looks: