For the Supergirl episode, see "Legion of Super-Heroes".
Not to be confused with the Legion of Doom.
For the superhero group in a possible future on Earth-1, see Rebooted Legion.
"The governments were overwhelmed by violence. By chaos. Mon-El organized us and we banded together to help Earth's leaders keep the peace, at home and in the stars."
Imra Ardeen[src]

The Legion are a group of superheroes from the 31st century, founded and led by Mon-El.


This section is a stub. You can help expand this section by adding some information.

The governments in the thirty-first century were overwhelmed by conflict. Mon-El, stranded in this time period, wanted to make a difference, so he formed the Legion. Using the superheroism of the 21st century's Supergirl as an ideal to follow, the Legion's goals were to keep the peace on Earth and in the stars. Imra Ardeen eventually joined, being inspired by the story and legend of Supergirl.[1]

The Legion battled against many alien hybrids that were created from labs to be combat efficient. At one point, Zod had been resurrected and the Legion had to track down some deposits of Kryptonite on Earth to use in battle against him. On another occasion, the Legion seemed to had some sort of interaction with Superman, as it appears Clark has a Legion ring of his own, keeping it on display in the Fortress of Solitude.[2]

While on a mission, the Legion hit a wormhole, and were transported 12,000 years into the past. They decided to put themselves into cryo-sleep until they re-awoke in the thirty-first century, but awoke earlier than anticipated, int the twenty-first century, when a torpedo hit their ship in 2017.[1]

Known members

Current members

Former members


Known allies

Current allies

Known enemies

Current enemies

Former enemies



Season 3

Season 4

Season 5


  • Two of the remaining Six Legionaries are likely Lightning Lad and Cosmic Boy, as they are usually one of the three founding members of the Legion along with Saturn Girl and occasionally Brainiac 5. Mon-El has never been a founding member in any other media.
  • It is possible that Phantom Girl, Bouncing Boy and Triplicate Girl are also part of the Legion since after the founding members they are the next main members. 
  • Mon-El mentions a friend from the 31st century named Alya. This is probably a reference to Lightning Lass (sometimes also known as Light Lass), a fellow member of the Legion.
  • Brainy has referenced Nura Nal, who in the DC comics, is known as the Legion member Dream Girl. Nia Nal is stated to be an ancestor of Nura's, and possesses the same powers as Dream Girl. It has yet to be confirmed whether the Arrowverse version of Nura Nal is a member of the Legion or is considered a superhero.
  • Mon-El and Saturn Girl are married, in the DC comic books, Imra eventually marries Lightning Lad.
  • Nora West-Allen has referred to a hero named Lightning Lad, and Gideon said that she was the fifth recruit of something before Barry cut her off. This could refer to the fact that XS and Lightning Lad were both members of the Legion in the DC comics.

Behind the scenes


Promotional images


Community content is available under CC-BY-SA unless otherwise noted.