Michael Jeter was 51 in The Polar Express when he played the character 'Smokey / Steamer'.
That was over 19 years ago in 2004.
In 2003 he died aged just 50, starring in 44 films in his career, 1 of those after The Polar Express was first released. If he were alive today he would be 71.
In The Polar Express, I think Michael Jeter looks: