Burgess Meredith was 73 in Rocky III when he played the character 'Mickey Goldmill'.
That was over 42 years ago in 1982.
In 1997 he died aged 89, starring in 128 films in his career, 31 of those after Rocky III was first released. If he were alive today he would be 116.
In Rocky III, I think Burgess Meredith looks: