Nathan Fillion's Guy Gardner Is an "Overconfident" Green Lantern in DCU's 'Superman'
Along with David Corenswet's Clark Kent, and a smattering of other DC heroes and villains, James Gunn's Superman will also ...
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Superman: Nathan Fillion Touches Upon Guy Gardner
Superman star Nathan Fillion delves into playing the "fearless" and "not nice" Guy Gardner in DC Studios' upcoming reboot.