Star Boy is expelled from the Legion for killing his girlfriend Dream Girl's ex-boyfriend Kenz Nuhor in self-defense, in violation of the Legion's rule against killing. After this, he and Dream Girl join the Legion of Substitute Heroes before returning to the Legion. Although Star Boy originally wears a purple uniform with a white cape and five-pointed yellow star on his chest, his best-known costume is a full-body starfield suit with white gloves and boots.
