Christopher Lee was 80 in The Lord of the Rings: The Return of the King when he played the character 'Saruman (Extended Edition)'.
That was over 20 years ago in 2003.
In 2015 he died aged 93, starring in 288 films in his career, 57 of those after The Lord of the Rings: The Return of the King was first released. If he were alive today he would be 101.
In The Lord of the Rings: The Return of the King, I think Christopher Lee looks: