The Green Lantern Corps has found its Guy Gardner.

Lanterns, the upcoming DC Studios series for HBO, has cast Nathan Fillion as Guy Gardner, one of the characters known for being The Green Lantern in DC Comics mythology. Fillion is set to play Gardner in this summers Superman, and will reprise the role in the HBO series.

Lanterns was picked up last year from Chris Mundy (Ozark), Damon Lindelof (Watchmen,Lost) and comics writer Tom King. The trio are co-writing and executive producing the series, with Mundy serving as showrunner.

Kyle Chandler is set to play another Green Lantern, Hal Jordan, in the series, joined by a new recruit to the Corps played by Aaron Pierre. The logline says that the show will see new recruitJohn Stewart (Pierre) and Lantern legend Hal Jordan (Chandler), two intergalactic cops drawn into a dark, Earth-based mystery as they investigate a murder in the American heartland.

Jason Ritter, Kelly Macdonald,Poorna Jagannathanand Ulrich Thomsen are also on the cast list. The show is another effort from DC Studios to expand its film franchise to premium TV, following The Penguin, which debuted on HBO last year to positive reviews.