Richard Griffiths was 38 in Withnail & I when he played the character 'Monty'.
That was over 37 years ago in 1987.
In 2013 he died aged 65, starring in 57 films in his career, 36 of those after Withnail & I was first released. If he were alive today he would be 76.
In Withnail & I, I think Richard Griffiths looks: