Billy Lee is one of the Double Dragons, alongside his brother Jimmy Lee.

Double Dragon V: The Shadow Falls

The son of Marika and John Lee, Billy Lee was separated from his parents as an infant due to the machinations of Shadow Master and is raised by the Oldest Dragon. Upon turning eighteen, Billy was presented with the Dragon Sword by Oldest Dragon to signify his ascension to Dragon Master. At this time, Billy's long lost brother Jimmy emerges only to be revealed as the crime lord Shadow Boss. Billy managed to show his brother the error of his ways, though, and the Dragon Sword split in two and the brothers shared the title of Dragon Master. By crossing swords and saying, "For Might! For Right! We are Double Dragons!", they are transformed into superheroes. The brothers form the Dragon Warriors and combat Shadow Master and his Shadow Warriors.