Our main character dons the alter-ego of Stargirl! The following is from known comic lore but is subject to change as the show is developed:
Courtney Elizabeth Whitmore, known as Stargirl (often called "Stars" or "Star"), is a fictional superhero appearing in American comic books published by DC Comics. Created by Geoff Johns and Lee Moder, the character's name and personality were patterned after Johns' sister Courtney, who died in the explosion of TWA Flight 800 in 1996.
Pat Dugan was Stripesy, a costumed hero who fought in World War II. If that backstory will remain for this 2018 TV Show is unknown. The following is based on the known lore from the comics and could change as the show develops:
Patrick "Pat" Dugan became the costumed hero Stripesy after aiding a young Sylvester Pemberton III against Nazi spies posing as protestors at a movie on 4 July 1941. The two team as embodiments of the American flag, Star-Spangled Kid and Stripesy, in order to track down and stop the spies.
Mike Dugan is the son of Pat Dugan and step brother to Courtney Whitmore. His personality is one that is very laid back and he loves to crack a joke. Mike is interested in videogame development.
Yolanda Montez is likely Courtney Whitmore's classmate and sidekick. They both attend Blue Valley High School and both seem to have ties to heroes from the past. In the comics, Yolanda is Wildcat. The following is from comic lore and is subject to change on the show.
Maria Montez and her sister are given experimental drugs by the mad gynecologist Dr. Benjamin Love while they are pregnant. Doctor Love keeps close tabs on most of his experiments, but loses track of the sisters when they travel to Mexico. In Mexico, Maria's daughter Yolanda is born on the same day her sister gives birth to Carcharo. Yolanda and her mother return to America to reunite with Mr. "Mauler" Montez. As a child, Yolanda manifests her superhuman powers, but is unaware of why she was born a mutant. She grows close to her godfather, Ted Grant, who is the mystery man Wildcat who operated during the 1940's. Years later, during the Crisis, Grant is crippled while saving a child. Yolanda assumes his identity to honor her godfather and the principles he represented.
Beth Chapel, an outcast who befriends Courtney and the other members of the new Justice Society of America.