Madeline Carroll was 8 in When a Stranger Calls when she played the character 'Allison Mandrakis'.
That was over 18 years ago in 2006.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 28, and has starred in 19 movies in total, 18 of those since When a Stranger Calls was released.
In When a Stranger Calls, I think Madeline Carroll looks: