Elsie Fisher was 6 in Despicable Me when she played the character 'Agnes (voice)'.
That was over 14 years ago in 2010.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 21, and has starred in 27 movies in total, 23 of those since Despicable Me was released.
In Despicable Me, I think Elsie Fisher looks: