Alfred Hitchcock was 71 in Frenzy when he played the character 'Spectator at Opening Rally (uncredited)'.
That was over 51 years ago in 1972.
In 1980 he died aged 80, starring in 82 films in his career, 44 of those after Frenzy was first released. If he were alive today he would be 123.
In Frenzy, I think Alfred Hitchcock looks: