Henry Cavill was 31 in Batman v Superman: Dawn of Justice when he played the character 'Clark Kent / Superman / Kal-El'.
That was over 8 years ago in 2016.
Today he is 41, and has starred in 31 movies in total, 12 of those since Batman v Superman: Dawn of Justice was released.
In Batman v Superman: Dawn of Justice, I think Henry Cavill looks: