Daniella Kertesz was 23 in World War Z when she played the character 'Segen'.
That was over 11 years ago in 2013.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 35, and has starred in 4 movies in total, 3 of those since World War Z was released.
In World War Z, I think Daniella Kertesz looks: