Billy Numerous is first seen as a student of the H.I.V.E. Academy where his power of duplication was subtly hinted. When the Academy was destroyed, Billy Numerous escaped and became a renegade villain. Billy Numerous has the power to duplicate himself as many times as he wants. All his clones share his personality and his trickery. The exact number of duplicates he can create is unknown but it is shown to be higher than a hundred. However if he creates too many clones, he will experience a physical and mental shock that results in reabsorbing his clones and stunning him.