Thus far, they are the most recurring villain characters of "Teen Titans Go!", appearing in a majority of the series' episodes as the central enemies. Brother Blood is noted as being the H.I.V.E.'s leader in one episode, and the five villains that make up the group are often simply called ""The H.I.V.E."" as opposed to the ""H.I.V.E. Five"." Billy Numerous is a member of the H.I.V.E. Five with the ability to generate clones of himself. He wears a red bodysuit with a division symbol on its chest as well as on the soles of its boots. Like the other members of the H.I.V.E. Five, Billy first appears in "Super Robin," loading a truck with the money bags from a bank they are robbing. The Teen Titans arrives to stop them; he attempts to outnumber and overpower Starfire, but he and his clones are quickly incinerated by her Star Bolts. Numerous is also seen with the H.I.V.E. Five when they return in "Artful Dodgers;" though they end up captured by the Titans following a robbery of a museum, Billy later appears as an alternate alongside See-More on the ""H.I.V.E. Fivers"" dodge-ball team. Billy would return with his fellow H.I.V.E. Five members in "Power Moves;" though he would try to outnumber the duo of Beast Boy and Cyborg, he and his duplicates would be defeated by their "Thunder Alley K-O" power move. In "No Power," he returns with the H.I.V.E. Five for yet another bank robbery; though she was barred from using her superpowers at the time due to a bet with Robin, Raven manages to defeat a duo of Billy clones using her walker as a weapon. Billy Numerous would again accompany the H.I.V.E. Five in their latest crime spree upon their relocation to Gotham City during "Sidekick;" though seen enamored by the light show generated by the Ultimate Batarang, he and a series of his clones are defeated, seen mounted to walls by Batarangs after attempting to flee. Numerous also makes a non-physical cameo in "Caged Tiger," seen in one of the many images which line the interior of the Titans Tower elevator. Billy appears with the H.I.V.E. Five again in "Breakfast Cheese," and is ruthlessly pummeled for loitering near a "No Loitering" sign; he does the same to the Titans later in the episode, but is eventually won over by their kindness.