Donald Pleasence was 75 in Halloween: The Curse of Michael Myers when he played the character 'Dr. Sam Loomis'.
That was over 29 years ago in 1995.
In 1995 he died aged 75, starring in 178 films in his career, 4 of those after Halloween: The Curse of Michael Myers was first released. If he were alive today he would be 104.
In Halloween: The Curse of Michael Myers, I think Donald Pleasence looks: