Stargirl is a superhero TV series first released into the DC Universe in May 2020. The story follows an ordinary high school girl, Courtney Whitmore, as she discovers her father’s secret past and her own affinity to the Cosmic Staff. With superpowers mostly under control, Stargirl helps revive the Justice Society of America (JSA) and commits to taking down the Injustice Society with her teammates. There are quite a few recognizable characters in the JSA, including Flash and Green Lantern, but the Stargirl series draws on some more obscure characters to round out its cast
Although Stargirl had only recently come to power in the 2020 Stargirl series, Starman has been around for much longer. In 1941, scientist Ted Knight invented the “”Cosmic Rod”” and became the first Starman. His son, realizing that “”Cosmic Staff”” sounded cooler, took over the title and rod when his father retired. Stargirl first appeared in a comic in 1999.
The first S.T.R.I.P.E. was invented by Courtney Whitmore’s father when the girl became a superhero. Just like Stargirl herself, S.T.R.I.P.E. first made an appearance in the1999 comic written by the Stargirl TV series’ executive producer, Geoff Johns.
The first Hourman appeared in 1940 and is reportedly a founding member of the JSA. Rex Tyler was a biochemist who invented a miracle vitamin to enhance his speed, strength and senses, but unfortunately, it could only be used for an hour a day, hence the name. There have been a number of characters going by Hourman in the DC history, each one becoming the superhero by taking the Miraclo vitamin.