John Connor is the single most important character in the Terminator franchise in terms of the mythology, with all six movies so far revolving around the idea of him being humanity's savior in the war against Skynet. However, despite his importance to every major storyline threaded throughout the messy timeline over the last four decades, the role has been recast with reckless abandon as the series constantly attempts to reboot and reinvent itself, only to fall victim to the law of diminishing returns.