Alfred Hitchcock was 55 in The Trouble with Harry when he played the character 'Passer-by (uncredited)'.
That was over 69 years ago in 1955.
In 1980 he died aged 80, starring in 82 films in his career, 58 of those after The Trouble with Harry was first released. If he were alive today he would be 124.
In The Trouble with Harry, I think Alfred Hitchcock looks: