Kerry Condon was 15 in Angela's Ashes when she played the character 'Theresa'.
That was over 24 years ago in 1999.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 41, and has starred in 26 movies in total, 25 of those since Angela's Ashes was released.
In Angela's Ashes, I think Kerry Condon looks: