Chief of the Science Police on Earth, Zoltorus was also secretly the leader of the criminal team Taurus Gang. In his only appearance, he ignores the Taurus gang to concentrate on the Scorpius gang, and the Substitutes recognize the departing Legionnaires. Later, Zoltorus visits Leland McCauley, the second richest man in the universe, to accuse him of being the brains behind Scorpius, and of attacking R. J. Brande out of jealousy. Secretly tracked by the Legionnaires, the Taurus gang meets with their boss, and to the heroes' astonishment, he is none other than R. J. Brande, their benefactor. After capturing him in the battle that follows, however, they unmask him as a disguised Chief Zoltorus, who had kidnapped Brande and used his money to build a crime empire.