User:TheD3xus/Sandbox

Heartless
Heartless only appear in the Dark City, as the Castle is home to the Nobodies. Although Armored Knights are shown in cutscenes before you fight Xigbar, you can never actually fight them in that area.

Nobodies
Every type of Nobody besides the Twilight Thorn and the mech-like Nobody used by Marluxia in Castle Oblivion appears in Organization XIII's stronghold: