Ben Barnes was 28 in The Chronicles of Narnia: The Voyage of the Dawn Treader when he played the character 'Caspian'.
That was over 14 years ago in 2010.
Today he is 42, and has starred in 18 movies in total, 10 of those since The Chronicles of Narnia: The Voyage of the Dawn Treader was released.
In The Chronicles of Narnia: The Voyage of the Dawn Treader, I think Ben Barnes looks: