C. Thomas Howell was 45 in Justice League: The Flashpoint Paradox when he played the character 'Professor Eobard 'Zoom' Thawne / Reverse-Flash (voice)'.
That was over 11 years ago in 2013.
Today he is 57, and has starred in 151 movies in total, 40 of those since Justice League: The Flashpoint Paradox was released.
In Justice League: The Flashpoint Paradox, I think C. Thomas Howell looks: