[3][4][5] The first Invisible Kid was Lyle Norg, an early member of the Legion who gained his powers from a chemical serum he invented.
[11] Jacques Foccart, the second Invisible Kid, is a native of the Ivory Coast who becomes a superhero while battling his sister Danielle, who is possessed by Computo.
[12][13] After the Dominators take over Earth, Jacques joins a resistance cell alongside Tyroc and the former members of the Legion of Substitute Heroes.
In post-Zero Hour continuity, Jacques Foccart is a friend and classmate of Lyle Norg who is forced to drink his serum by Charma, a fellow student with mind control abilities.
[16] In The New Golden Age, Invisible Kid is among the Legion of Super-Heroes members who arrive in the present and confront the Justice Society over their decision to recruit Legionnaire, a young, heroic incarnation of Mordru.