Donald Pleasence was 67 in Prince of Darkness when he played the character 'Vater Loomis'.
That was over 37 years ago in 1987.
In 1995 he died aged 75, starring in 178 films in his career, 32 of those after Prince of Darkness was first released. If he were alive today he would be 104.
In Prince of Darkness, I think Donald Pleasence looks: