Here is everything to know about Nathan Fillion's bowl-cut-wearing Green Lantern Guy Gardner and his role in the upcoming 'Superman.'

The trailer for Superman recently dropped. The movie chronicles the adventures of the Man of Steel, who tries to delve deep into his Kryptonian heritage. As fans grow excited for yet another version of their beloved superhero,

As excitement mounts for the first film in the DC Universe Chapter One: Gods and Monsters, let's explore Guy Gardner's backstory and his possible role