Domhnall Gleeson was 33 in Star Wars: The Last Jedi when he played the character 'General Hux'.
That was over 6 years ago in 2017.
Today he is 41, and has starred in 38 movies in total, 8 of those since Star Wars: The Last Jedi was released.
In Star Wars: The Last Jedi, I think Domhnall Gleeson looks: