User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-5432352-20120822170505/@comment-4821105-20120823233927

Everybody has "back story", but of course he might not here from all characters or the same as like in season 1, for example Lagoon Boy hasn’t an origin in the comics and it is possible a new instruction of new characters. Don’t forget that the show have lot of characters.