Kit Harington was 31 in How to Train Your Dragon: The Hidden World when he played the character 'Eret (voice)'.
That was over 5 years ago in 2019.
Today he is 37, and has starred in 20 movies in total, 7 of those since How to Train Your Dragon: The Hidden World was released.
In How to Train Your Dragon: The Hidden World, I think Kit Harington looks: