Marlon Brando was 26 in A Streetcar Named Desire when he played the character 'Stanley Kowalski'.
That was over 73 years ago in 1951.
In 2004 he died aged 80, starring in 97 films in his career, 94 of those after A Streetcar Named Desire was first released. If he were alive today he would be 100.
In A Streetcar Named Desire, I think Marlon Brando looks: