When Stargirl picks up the Cosmic Staff and continues the legacy of Starman and the Justice Society of America for a new generation, the teenage superhero won't be alone.

A new teaser for the upcoming DC Universe original series shows Courtney Whitmore's stepfather Pat Dugan joining Stargirl on the field in the powerful, robotic suit S.T.R.I.P.E. and unleashing its devastating abilities.

RELATED: Stargirl's Original Superhero Team Is Older Than the JSA

Prior to donning the armor, Dugan had been Starman's loyal sidekick. He carried on the superhero's legacy by safeguarding his signature Cosmic Staff after Starman's untimely demise.

RELATED: Stargirl Will Involve Green Lantern - and a Different Flash

Now back in the superhero game and more formidable than ever, Dugan serves as much different sidekick to his stepdaughter as they prepare to face off against a resurgent Injustice Society.

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: The CW's Stargirl Show Trailer Teases Starman Connections and the JSA