Stan Lee was 82 in X-Men: The Last Stand when he played the character 'Waterhose Man'.
That was over 18 years ago in 2006.
In 2018 he died aged 95, starring in 123 films in his career, 88 of those after X-Men: The Last Stand was first released. If he were alive today he would be 101.
In X-Men: The Last Stand, I think Stan Lee looks: