Orson Welles was 33 in The Third Man when he played the character 'Harry Lime'.
That was over 75 years ago in 1949.
In 1985 he died aged 70, starring in 241 films in his career, 218 of those after The Third Man was first released. If he were alive today he would be 109.
In The Third Man, I think Orson Welles looks: