24. Warren Moon
Though he might be surpassed in the demographic category by the likes of Pat Mahomes or Cam Newton, for now Moon remains the greatest African-American quarterback in NFL history. This designation is somewhat ironic considering it was in the Canadian Football League (CFL) in which Moon achieved his initial professional success that lead to a successful transition to the best pro football league.
Moon was foolishly undrafted in the 1978 NFL Draft, so he took his game to the Edmonton Eskimos of the CFL, where he won a Tom Brady-like five Grey Cups (the CFL equivalent of the Super Bowl) before returning to the NFL in 1984 to play with the Houston Oilers first, then three other NFL teams. Though he never won an NFL title, Moon retired with 291 career touchdowns, a number that would otherwise easily exceed 400 had he been properly drafted in ‘78.