William Hurt was 68 in Avengers: Endgame when he played the character 'Secretary of State Thaddeus 'Thunderbolt' Ross'.
That was over 5 years ago in 2019.
In 2022 he died aged 72, starring in 97 films in his career, 4 of those after Avengers: Endgame was first released. If he were alive today he would be 74.
In Avengers: Endgame, I think William Hurt looks: