Donald Pleasence was 69 in Halloween 5: The Revenge of Michael Myers when he played the character 'Dr. Sam Loomis'.
That was over 35 years ago in 1989.
In 1995 he died aged 75, starring in 178 films in his career, 19 of those after Halloween 5: The Revenge of Michael Myers was first released. If he were alive today he would be 104.
In Halloween 5: The Revenge of Michael Myers, I think Donald Pleasence looks: