Christopher Plummer was 78 in The Imaginarium of Doctor Parnassus when he played the character 'Doctor Parnassus'.
That was over 15 years ago in 2009.
In 2021 he died aged 91, starring in 176 films in his career, 35 of those after The Imaginarium of Doctor Parnassus was first released. If he were alive today he would be 94.
In The Imaginarium of Doctor Parnassus, I think Christopher Plummer looks: