The Guy Gardner Effect: Why Nathan Fillion's Return is a DC Universe Game Changer Nathan Fillion's return to the role of Guy Gardner in "Lanterns" has sent shockwaves through the DC Universe.
His familiarity with the character from his previous stint as voice actor in "Justice League Unlimited" made him an obvious choice for James Gunn, who saw an opportunity to bring him back into the fold.
Guy Gardner is a troubled character with a history of personal demons and a penchant for self aggrandizement. Fillion's portrayal humanizes him in a way that feels both authentic to the comics and fresh for the screen.