Maleficent's council

It is a group put together by Maleficent herself in order to help her obtain Kingdom Hearts while she offered the assitance of the Heartless to whomever joined her. Though Maleficent was just being used by Master Xehanort as one of his back up plans since he was unable to move himself.

Story
Kingdom hearts Birth By Sleep

Though Maleficent had yet to gather anyone to to join her on ther quest for the Seven Princesses of Heart, she, Hades, Captain Hook and Pete each make an appearance in their home worlds during the adventures of Terra, Aqua and Ven. Maleficent latter freed Pete from his banishment imposed by Queen Minnie, gaining her first ally in her conquest.

By the following ten years, Maleficent had gathered followers in Jafar, Hades, Captain Hook, Ursula and Oogie Boogie, giving each other them missions to find the keyhole of their worlds. After Riku, washed up in Hollow Bastion, Maleficent had him join her group with the promise to find Kairi fi Riku helped her.