Stan Lee was 87 in Captain America: The First Avenger when he played the character 'General (uncredited)'.
That was over 13 years ago in 2011.
In 2018 he died aged 95, starring in 123 films in his career, 59 of those after Captain America: The First Avenger was first released. If he were alive today he would be 101.
In Captain America: The First Avenger, I think Stan Lee looks: