George Carlin was 50 in Bill & Ted's Excellent Adventure when he played the character 'Rufus'.
That was over 35 years ago in 1989.
In 2008 he died aged 71, starring in 78 films in his career, 64 of those after Bill & Ted's Excellent Adventure was first released. If he were alive today he would be 87.
In Bill & Ted's Excellent Adventure, I think George Carlin looks: