Roddy McDowall was 69 in A Bug's Life when he played the character 'Mr. Soil (voice)'.
That was over 24 years ago in 1998.
In 1998 he died aged 70, starring in 166 films in his career, 5 of those after A Bug's Life was first released. If he were alive today he would be 94.
In A Bug's Life, I think Roddy McDowall looks: