What is the third type of being in Kingdom Hearts

I'm not exactly sure of what you mean... but I guess this is the answer. The somebody (Original self) The Heartless (they are the darkness enveloping other's hearts) The Nobodies (misnomer, they are the body nd soul left over) KeybladeLord---- Let me answer this... So everybody has a bit of darkness in their hearts,right? Out of that darkness Heartless are made. Heartless walk around then kill people and the people turn into a heartless BUT the heart is gone so whats happened with the body? The shell starts to move in its own accord and they kill people and heartless then nobodies etc. Lesser nobodies(people with weak hearts) are just turned into nobodies like dusks but the Superior nobodies (like Organization XIII) can think talk and move even though they do not have hearts they want to have feeling therefore trying to make Kingdom Hearts to revive their hearts and make them true people again. Hope that helped. If you need any help just mail me at [email protected]