The DC universe on the small screen continues to expand. Stargirl, which will be airing on the DC Universe streaming service as well as The CW, is the latest show to join the ever-expanding lineup. The show is set to bring the Justice Society of America into the fold. With that, a Green Lantern and a new version of The Flash will be coming to the table.

Comic book icon Geoff Johns serves as a producer on Stargirl, having created the character in the pages of DC Comics. During a recent interview, he touched on the Alan Scott version of Green Lantern and the Jay Garrick version of Flash. Both debuted years before better known versions, such as Hal Jordan or John Stewart with Green Lantern or Barry Allen for The Flash. Johns revealed that both characters exist in this universe and they could be a big part of the plan down there line. Here's what Johns had to say about it.

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"[Green Lantern and Flash] are spoken of and they exist in the JSA. There's a picture of them in the first episode, and there's plans in the future for things, but Jay Garrick and Alan Scott, to me, are always the elderly statesmen. They're the big heroes of the JSA and their shadow is very long and they're great characters. They are a part of the original JSA and their legacies will be felt throughout the show. I don't want to spoil too much about it, but I can leave it at that."

The Flash is currently airing its sixth season on The CW and features Barry Allen. There is a Green Lantern show being developed for HBO Max right now, but the character has yet to appear in the ArrowVerse, or elsewhere on TV in live-action. Though, Arrow teased fans quite a bit on that front. So having these characters come into the fold via Stargirl as members of the JSA would be a pretty big deal, even if they aren't necessarily the focus of the show.

Stargirl centers on a high school sophomore Courtney Whitmore, played by Brec Bassinger, who inspires an unlikely group of young heroes to stop the villains of the past. The cast also includes Joel McHale as Starman, Luke Wilson as Pat Dugan and Meg DeLacy as Cindy Burman. Amy Smart, Trae Romano, Cameron Gellman, Yvette Monreal, Anjelika Washington, Meg DeLacy, Neil Jackson, Jake Austin Walker, Christopher James Baker and Hunter Sansone help round out the ensemble.

At this point, Stargirl isn't officially part of the ArrowVerse, but a crossover down the line certainly shouldn't be ruled out. Especially given what happened with Crisis on Infinite Earths last year. Stargirl is set to make its debut Monday, May 18 on the DC Universe streaming service. It will then air Tuesday, May 19 on The CW. This news comes to us via IGN.