William Atherton was 24 in The New Centurions when he played the character 'Johnson'.
That was over 52 years ago in 1972.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 76, and has starred in 56 movies in total, 55 of those since The New Centurions was released.
In The New Centurions, I think William Atherton looks: