Justin Chambers was 42 in Justice League: The Flashpoint Paradox when he played the character 'Barry Allen / The Flash (voice)'.
That was over 11 years ago in 2013.
Today he is 53, and has starred in 11 movies in total, 0 of those since Justice League: The Flashpoint Paradox was released.
In Justice League: The Flashpoint Paradox, I think Justin Chambers looks: