Donna Troy, commonly known as Wonder Girl, made her debut in The Brave and the Bold #60 (July 1965), created by writer Bob Haney and artist Bruno Premiani. Initially introduced as a younger counterpart to Wonder Woman within the newly formed Teen Titans, she was a founding member of the team alongside Robin, Kid Flash, and Aqualad. This appearance stemmed from earlier stories featuring a teenage "Wonder Girl" as a younger version of Diana Prince, but Donna was retroactively established as a distinct character, an orphan rescued and empowered by the Amazons of Themyscira.
In 1969, she received her civilian name, Donna Troy, and her backstory was fleshed out as a human child saved from a tragic fire by Wonder Woman, who brought her to Paradise Island to be raised among the Amazons and granted similar powers. A significant development occurred in the 1980s with the "Who is Donna Troy?" storyline in The New Teen Titans, written by Marv Wolfman and illustrated by George Pérez, which provided a definitive post-Crisis on Infinite Earths origin: Donna as an adopted sister to Diana, trained in Amazonian ways and embracing a heroic path in the wider world.
Donna Troy's history has been notably complex due to multiple retcons across DC continuities. She adopted the alias Troia in the 1990s, gaining enhanced powers from the Titans of Myth, and later served with groups such as the Darkstars. Further revisions, including a New 52 origin as a magically created antagonist to Wonder Woman thwarted by the Amazons, and subsequent integrations of multiversal aspects, have reinforced her resilience and ties to Wonder Woman. As of recent depictions, she remains a pivotal figure in the Titans and broader DC Universe, embodying strength, compassion, and an enduring legacy as the original Wonder Girl.