If comic readers know anything about Guy Gardner, it's that he's a jerk. Nathan Fillion, who is playing him in the upcoming Superman, understands this and is embracing it.

In a new interview with TV Guide in support of his TV series The Rookie, he was asked what sets Guy Gardner apart from other Green Lanterns. "He's a jerk!" said Fillion.

He went on to add, "What's important to know is, you don't have to be good to be a Green Lantern; you just have to be fearless. So Guy Gardner is fearless, and he is not very good. He's not nice, which is very freeing as an actor because you just think to yourself, what is the most selfish, self-serving thing I can do in this moment? And that's the answer. That's what you do in that moment. I think if he has a superpower, it might be his overconfidence, in that he thinks he could take on Superman. He can't!"

There has been no word yet if Fillion will appear in the upcoming Lanterns series as it will focus on Hal Jordan and John Stewart. But the Green Lantern Corps will likely play a significant role in the forthcoming DC Universe if we meet three members in less than a year of releases.

Superman will serve as the first live-action entry expressly made for the new DCU.  In addition to seeing Superman, the film will include the first appearances of Lois Lane, Jimmy Olsen, Perry White, Cat Grant, Steve Lombard, Lex Luthor, Eve Teschmacher, Hawkgirl, Mister Terrific, Metamorpho, Guy Gardner, the Engineer, and Krypto the Superdog. Some rumors have indicated we will also see the first appearance of Supergirl, who is set to be played by Milly Alcock. She will then appear in her own film, Supergirl: Woman of Tomorrow.

The cast of Superman is set to include David Corenswet as Superman, and Rachel Brosnahan as Lois Lane. They will all be joined by Isabela Merced as Hawkgirl, Edi Gathegi as Mister Terrific, Anthony Carrigan as Metamorpho, Nathan Fillion as Guy Gardner, Skyler Gisondo as Jimmy Olsen, Nicholas Hoult as Lex Luthor, Sara Sampaio as Eve Teschmacher, Wendell Pierce as Perry White, María Gabriela de Faría as the Engineer , Mikaela Hoover as Cat Grant, Christopher MacDonald as Ron Troupe, and Beck Bennett as Steve Lombard.

Superman will hit theaters on July 11, 2025.