If anyone wants to play Fred she(or even Groosalugg) could easily have come back to earth from Pylea along with all the Drokkens, Hellbeasts, and other Pylea natives who poured in. This would be a Fred fresh from Pylea, returning to an her homeworld to find it in arguably worse condition than Pylea was. So she'd probably still be extremely skittish unless she fell in with a good group. Hey maybe she's been in Redemption for the last 16 years and has acclimated well.