With Stargirl premiering on DC Universe and The CW next month, new photos from the superhero series have surfaced online.

The photos reveal the assembled Injustice Society, including Sportsmaster, Icicle and Tigress. Another photo shows Courtney Whitmore's stepfather Pat Dugan introducing her to the Justice Society of America's headquarters, with a banner honoring Starman in the background. A third photo ominously shows Golden Age Flash Jay Garrick's signature winged helmet sitting among debris.

RELATED: DC Universe's Stargirl Is Landing at the Exact Right Time, After All

The Injustice Society has long opposed to JSA, and their return will serve as one of Courtney's largest obstacles in leading a new generation of superheroes.

And while JSA co-founders Jay Garrick and Alan Scott have been absent from promo materials, series creator Geoff Johns has confirmed to the characters' legacies would loom large in the first season.

DC Universe's Stargirl stars Brec Bassinger as Courtney Whitmore (Stargirl), Luke Wilson as Pat Dugan (Stripesy), Joel McHale as Sylvester Pemberton (Starman), Yvette Monreal as Yolanda Montez (Wildcat), Amy Smart as Barbara Whitmore, Anjelika Washington as Beth Chapel (Dr. Mid-Nite), Cameron Gellman as Rick Tyler (Hourman), Joy Osmanski as Ms. Brooks (Tigress), Christopher James Baker as Dr. Henry King (Brainwave), Neil Jackson as Jordan Mahkent (Icicle), Nelson Lee as Dr. Ito (Dragon King) and Neil Hopkins as Lawrence Crock (Sportsmaster). The series premieres Monday, May 18, on DC Universe and Tuesday, May 19, on The CW.

KEEP READING: Stargirl Teaser Officially Introduces the DC Hero's Sidekick