Lyle Norg is a genius with a skill for xenochemistry who was used by his father to develop an invisibility serum. His Science Police officer father used to bring him alien cell samples nearly every night to experiment with. By the time he had successfully created a serum, he discovered that his father promised to hand over Lyle's research to the Science Police all along. So he injected the only existing serum into himself and lied about it before contacting Brainiac 5 for help. Brainy invited Lyle to join the Legion. Eventually his father discovered the truth and tried to get Lyle to quit and hand over the serum. After the Legion was outlawed, Lyle reneged and produced a blood sample for his father to use. The sample was encoded with a monitoring virus allowing Legion access to the United Planets systemworks. Because of his relationship to Brainiac 5 his teammates have snarlingly nicknamed him "Brainiac 6".