Dominic Cooper was 39 in Mamma Mia! Here We Go Again when he played the character 'Sky'.
That was over 6 years ago in 2018.
Today he is 46, and has starred in 39 movies in total, 1 of those since Mamma Mia! Here We Go Again was released.
In Mamma Mia! Here We Go Again, I think Dominic Cooper looks: