Joseph Gordon-Levitt was 35 in Star Wars: The Last Jedi when he played the character 'Slowen Lo (voice)'.
That was over 6 years ago in 2017.
Today he is 43, and has starred in 75 movies in total, 10 of those since Star Wars: The Last Jedi was released.
In Star Wars: The Last Jedi, I think Joseph Gordon-Levitt looks: