The Legion of Super-Heroes is a team of fictional superheroes in comic book series published by DC Comics. The team has gone through various iterations, along with two separate reboots. Starting with the founding trio of Cosmic Boy, Lightning Lad, and Saturn Girl, all versions of the team include teenage superheroes from several planets and alien races. In some versions, the team swells to two dozen or more members, with different sub-groupings, such as the Legion of Substitute Heroes.
Introduced in Adventure Comics #247 (April 1958), the original version of the team appeared in various titles for 36 years until Legion of Super-Heroes vol. 4, #61 (September 1994).
Many of these individuals were only depicted in flashbacks, and information regarding their tenure is often extremely limited.
Introduced in Legion of Super-Heroes vol. 4, #24 (December 1991), "Batch SW6" included teenage versions of the original Legion (whose members had all reached adulthood), which appeared in the original continuity until Legion of Super-Heroes vol. 4, #61 (September 1994). Batch SW6's roster was equivalent to the original Legion's membership immediately following the team's first encounter with Universo, with Valor and Laurel Gand replacing Superboy, Mon-El and Supergirl (with all three of Triplicate Girl's bodies intact). The members of this team were shown to be temporal duplicates of the original Legionnaires created by the Time Trapper. Additionally, five non-SW6 members joined: Computo (Danielle Foccart), Dragonmage, Catspaw, Kid Quantum, and the adult Reep Daggle (Chameleon).
This version of the Legion emerged in the aftermath of Zero Hour, and first appeared in Legion of Super-Heroes vol. 4, #0 (October 1994). It was revealed in Infinite Crisis #6 (May 2006) that this version of the team inhabits Earth-247.
This version of the Legion first appeared in the Teen Titans/Legion Special (November 2004). It was revealed in Final Crisis: Legion of 3 Worlds #5 (September 2009) that this version of the team inhabits Earth-Prime, the home of supervillain Superboy-Prime.