Jason O'Mara was 45 in Reign of the Supermen when he played the character 'Bruce Wayne / Batman (voice)'.
That was over 5 years ago in 2019.
Today he is 51, and has starred in 24 movies in total, 4 of those since Reign of the Supermen was released.
In Reign of the Supermen, I think Jason O'Mara looks: