Aleister Crowley

Aleister Crowley, codenamed by the Amestrian Government as The Great Beast, is a master Alchemist and Homunculus from the ancient civilization of Xerxes. He has managed to escape Father's Great Transmutation Circle before it had a chance to activate and has, ever since, made use of his Alchemic knowledge to further his own pursuits of immortality.

Homunculi
Aleister has created four Homunculi to act as enforcers for him and to carry out specific tasks discretely so that it cannot be traced back to him. Each are highly skilled in combat, with or without their distinct abilities.

Amon
Amon wears dark plate armour and uses a sword made of the same, durable metal. He has dark hair and a stubble with two different eye colours, one being bright gold and the other blue. His gold eye is much like Wrath's "Ultimate Eye" in that it is capable of percieving different things at once. This added with his skill with the sword make him and Wrath extremely identical.