Christopher Lee was 24 in Corridor of Mirrors when he played the character 'Charles'.
That was over 76 years ago in 1948.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 2015 he died aged 93, starring in 288 films in his career, 286 of those after Corridor of Mirrors was first released. If he were alive today he would be 101.
In Corridor of Mirrors, I think Christopher Lee looks: