Paul Newman was 48 in The Towering Inferno when he played the character 'Doug Roberts'.
That was over 49 years ago in 1974.
In 2008 he died aged 83, starring in 105 films in his career, 59 of those after The Towering Inferno was first released. If he were alive today he would be 99.
In The Towering Inferno, I think Paul Newman looks: