Sylvester Pemberton

The original Star-Spangled Kid was Sylvester Pemberton, a Golden Age character, created by Superman co-creator Jerry Siegel. He adopted the identity to battle Nazism during World War II, and was unique in being a child with an adult sidekick, Stripesy a.k.a. Pat Dugan.^[1][2] Both he and Dugan were superb acrobats along with having sufficient training in hand-to-hand combat, but the pair regularly bickered about which of them should get top billing.

Decades later, he changed his name to Skyman and led Infinity Inc.^[3] He was later killed by Mister Bones's cyanide touch.

Courtney Whitmore

Courtney is Pat Dugan's stepdaughter, who found Pemberton's gear in his belongings and donned the Cosmic Converter Belt, with a costume of her own design. She begins her career as the second Star-Spangled Kid to annoy Dugan as partial revenge for him marrying her mother and supposedly forcing the family to move from Los Angeles to Blue Valley, Nebraska. Dugan, a skilled mechanic, designs and builds S.T.R.I.P.E., a mecha which he rides in to accompany and protect her. Eventually, she joins the JSA and, after being given Jack Knight's cosmic rod, changes her identity to Stargirl.

Miss Martian

A third Star-Spangled Kid appears in Terror Titans #1 and is subsequently captured by the Terror Titans team for the Dark Side Club. The Star-Spangled Kid is forced to fight in a tournament against other meta-humans, going on to win the tournament. During the course of the storyline he appears to have a much stronger resistance to brainwashing than the other fighters, although he does eventually succumb. Later, it is revealed that he is the shape-shifting Miss Martian, who is immune to the brainwashing and gradually frees the other combatants.^[4]