Lee Van Cleef was 40 in The Good, the Bad and the Ugly when he played the character 'Sentenza/Angel Eyes'.
That was over 57 years ago in 1966.
In 1989 he died aged 64, starring in 89 films in his career, 35 of those after The Good, the Bad and the Ugly was first released. If he were alive today he would be 99.
In The Good, the Bad and the Ugly, I think Lee Van Cleef looks: