Chloë Grace Moretz was 12 in Kick-Ass when she played the character 'Mindy Macready / Hit-Girl'.
That was over 14 years ago in 2010.
Today she is 27, and has starred in 65 movies in total, 36 of those since Kick-Ass was released.
In Kick-Ass, I think Chloë Grace Moretz looks: