Okay, I think this is what we've got so far:
Destiny Islands: Selphie, Kairi
Disney Castle: Minnie (Ally), Merlin, Chip & Dale, Daisy, Triplets
100-Acre Wood: Pooh, Eeyore, Rabbit, Owl, Piglet, Tigger
Olympus Coliseum: Hercules, Megaera, Phil, Pegasus, Hades, Demyx (Order member)
Agrabah: Aladdin (Ally), Genie, Jafar, Jasmine, Iago
Halloween Town: Jack (Ally), Lock & Shock & Barrel, Oogie Boogie <costume change>
Atlantica: Ursula, Ariel (Ally), Prince ??, Sebastian, Flounder <costume change>
Hollow Bastion: EM (Order member)
Kingdom Hearts
Deep Dive: BHK (suspected Order member)
Twilight Town: Seifer, Fuujin, Raijin, BHK's friends, Mickey (suspected Order member)
Castle Oblivion: Namine, DiZ
Land of Dragons: Mulan (Ally), Mushu, Shan-Yu, Soldiers, Riku (Suspected Order Member)
Beast’s Castle: Beast (Ally), Belle, Enchanted Servants, Xaldane (Order member)
Port Royal: Jack Sparrow (Ally), Elizabeth Swann, Will Turner, Barbarossa, Cursed Pirates, Luxord (Order member)
Timeless River: Mickey, Pete <costume change>
Pride Lands: Simba, Scar <costume change>
We also have Standard, Wisdom, and Valor Modes
For Nobodies:
Dusk
*dragoon: Xaldane's
*samurai: probably BHK's
*twilightside
If anyone can think of others, please post. Images are also helpful
Destiny Islands: Selphie, Kairi
Disney Castle: Minnie (Ally), Merlin, Chip & Dale, Daisy, Triplets
100-Acre Wood: Pooh, Eeyore, Rabbit, Owl, Piglet, Tigger
Olympus Coliseum: Hercules, Megaera, Phil, Pegasus, Hades, Demyx (Order member)
Agrabah: Aladdin (Ally), Genie, Jafar, Jasmine, Iago
Halloween Town: Jack (Ally), Lock & Shock & Barrel, Oogie Boogie <costume change>
Atlantica: Ursula, Ariel (Ally), Prince ??, Sebastian, Flounder <costume change>
Hollow Bastion: EM (Order member)
Kingdom Hearts
Deep Dive: BHK (suspected Order member)
Twilight Town: Seifer, Fuujin, Raijin, BHK's friends, Mickey (suspected Order member)
Castle Oblivion: Namine, DiZ
Land of Dragons: Mulan (Ally), Mushu, Shan-Yu, Soldiers, Riku (Suspected Order Member)
Beast’s Castle: Beast (Ally), Belle, Enchanted Servants, Xaldane (Order member)
Port Royal: Jack Sparrow (Ally), Elizabeth Swann, Will Turner, Barbarossa, Cursed Pirates, Luxord (Order member)
Timeless River: Mickey, Pete <costume change>
Pride Lands: Simba, Scar <costume change>
We also have Standard, Wisdom, and Valor Modes
For Nobodies:
Dusk
*dragoon: Xaldane's
*samurai: probably BHK's
*twilightside
If anyone can think of others, please post. Images are also helpful