Matt Hardy--43 years old.
Most of the men on this list have had a steady amount of success throughout their careers, but Matt Hardy stands alone because his stock as actually went UP in his middle age.
By creating the "Broken" (now Woken in WWE) character, he revitalized his career, made himself relevant again, and--most surprising of all--is now considered the 'better' half of the Hardy Boys.
In spite of his age, Matt is in the best shape he's seen in years, and looks to have fully recovered from his mopey social media tirades about ex-girlfriends and ex-employers. At the age of 43, Hardy is fresh and exciting. No mean feat.
Edited by Pratyay Ghosh