Cloris Leachman was 69 in Beavis and Butt-Head Do America when she played the character 'Old Woman On Plane And Bus (voice)'.
That was over 27 years ago in 1996.
In 2021 she died aged 94, starring in 141 films in her career, 56 of those after Beavis and Butt-Head Do America was first released. If she were alive today she would be 98.
In Beavis and Butt-Head Do America, I think Cloris Leachman looks: