Christopher Mintz-Plasse was 19 in Kick-Ass when he played the character 'Chris D'Amico / Red Mist'.
That was over 14 years ago in 2010.
Today he is 34, and has starred in 34 movies in total, 29 of those since Kick-Ass was released.
In Kick-Ass, I think Christopher Mintz-Plasse looks: