On several of the computer screens at the Hero Factory station, the name and an image of Vapour briefly flashes. Vapour was a villain character that didn't appear on the TV show in person, but was sold as a special edition LEGO set, exclusive to certain stores. He shared many pieces with other villains (his head, for example, was a recolored version of Rotor's head piece), and was the only blue villain of the toy line. He also came with a new version of the Dunkan Bulk figure, who was equipped with a jetpack.
Chief Drax is yet another character who wasn't based on a preexisting LEGO model.