Danielle Harris was 10 in Halloween 4: The Return of Michael Myers when she played the character 'Jamie Lloyd'.
That was over 36 years ago in 1988.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 47, and has starred in 74 movies in total, 70 of those since Halloween 4: The Return of Michael Myers was released.
In Halloween 4: The Return of Michael Myers, I think Danielle Harris looks: