Donald Pleasence was 34 in Orders Are Orders when he played the character 'Cpl. Martin (as Donald Plesance)'.
That was over 70 years ago in 1954.
In 1995 he died aged 75, starring in 178 films in his career, 176 of those after Orders Are Orders was first released. If he were alive today he would be 104.
In Orders Are Orders, I think Donald Pleasence looks: