Harper is the oldest of the Rebel Squad but the youngest and most stubborn of the Hart family.
At the age of 7, Harper lost his legs in a fire. For a while, he used a wheelchair. 5 years later, when Castor became Flare and joined The Champions, he had enough money to get him high-tech prosthetics.
4 more years later, Zada had already been Stormbird for 2. He was fed up with being helpless and fragile. His siblings were protecting the city, why couldn’t he?
So when a tech company, Guardian Engineering, was looking to test its newest technology, he volunteered. They gave him sleek, black, metal talons that resembled those of a harpy eagle. Little did he know that the company had some terrible secrets. With the help of Castor and Zada, he put a stop to their crimes and became the superhero known as “The Harpy” (he had to use a pun because why not). Even though Castor already didn’t want Zada out and about as Stormbird, Harper being stubborn as ever convinced him to let him become a hero and even start his own team.