[quote=@Gisk]
<Snipped quote by AquaAzura>

Roxas was an unusual case, and I don't fully understand everything about his deal. But in this world, yeah that's a good assumption. 

Yes! They can influence the light or dark(according to their own nature) in the hearts they inhabit. One could, if they were particularly dark and particularly strong, overpower a heart and make it a heartless. Though the person in question likely wasn't of strong enough will to produce a Nobody. 

They could only take full control if there is no other willpower controlling the being they inhabit, but they can influence others if they choose. 
[/quote]

Roxas/Xion/Namine are huge question marks in the lore lmao~

Sounds like they'd be interesting allies or foes.

So if somebody made a body for the soul to possess they could control it? Like Xion and her whole deal? 

Also I added a couple lines to my text to have Gale with everybody else!