Stacy Keach was 26 in The Heart Is a Lonely Hunter when he played the character 'Blount'.
That was over 56 years ago in 1968.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 82, and has starred in 163 movies in total, 161 of those since The Heart Is a Lonely Hunter was released.
In The Heart Is a Lonely Hunter, I think Stacy Keach looks: