Robert Knepper was 56 in Jack Reacher: Never Go Back when he played the character 'General Harkness'.
That was over 8 years ago in 2016.
Today he is 64, and has starred in 79 movies in total, 21 of those since Jack Reacher: Never Go Back was released.
In Jack Reacher: Never Go Back, I think Robert Knepper looks: