Rob McElhenney was 18 in The Devil's Own when he played the character 'Kevin'.
That was over 27 years ago in 1997.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 47, and has starred in 9 movies in total, 9 of those since The Devil's Own was released.
In The Devil's Own, I think Rob McElhenney looks: