User blog comment:Rassilon of Old/Young Justice spoilers at Comic-Con 2012/@comment-108.89.213.126-20120717013346/@comment-5012837-20120717210809

no one ever considered the aliens we already have. we were promised at least 9 alien species;

1.kryptonian(superman, superboy,match)

2.thanagarian(hawkman and hawkwoman)

3.kroletaen

4.martian(m'gann)

5.czarnian(lobo)

6.Rannians(allana strange)

7.rimborians

thats 7 seven so far. i dont know if atlanteans qualify as aliens but if they do then thats eight. and im pretty sure there is way more to come.