Charles Durning was 38 in The Password Is Courage when he played the character 'American Solider (uncredited)'.
That was over 62 years ago in 1962.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 2012 he died aged 89, starring in 155 films in his career, 155 of those after The Password Is Courage was first released. If he were alive today he would be 101.
In The Password Is Courage, I think Charles Durning looks: