Cyborg is the half-cybernetic half-man chief technological expert, and one of the five founding members of the Teen Titans. He was a promising teenage athlete before an accident killed his mother and injured him so severely that his damaged body parts were replaced with cybernetics to keep him alive. However, since these mechanical parts were not inconspicuous, he was shunned his former friends, which frustrated him greatly.
One night, Cyborg took to the streets, where he ran into the new arrivals Robin and Beast Boy fighting a violent alien girl, Starfire, who was actually a fugitive from a prisoner transport. Soon joined by the mystery girl Raven, the youngsters teamed up to defeat the girl's alien captors and formed a permanent team to combat villainy. Cyborg constructed the Titans Tower and its systems from a Gordanian landing ship, and the team moved into its new headquarters. From that point on Cyborg served as the team's chief technician.