Speedy is the name of two DC Comics superheroes, fictional characters that have each served Harper also became an early member of the Teen Titans.Fictional character · Powers and abilities · Other versions · In other media. Team affiliations, Teen Titans Team Arrow. Abilities, Accomplished archer with an assortment of trick arrows. Capable combatant and expert swordsman. Mia Dearden is a DC Comics superheroine, the second character to take the mantle of Green Team affiliations: Teen Titans; Team Arrow.