John's body to fight, but this slows his movements, which is why Michael continues to train John to fight on his own. Angels Michael One of the most powerful angels in Heaven, Michael distinguished himself in the 5th Armageddon. When he was a young angel, Michael spent some time as a member of the Grigori unit with Lucifer before his fall. The Grigori Persecution Unit is responsible for hunting down nephilim and grigori, those angels who have fallen in love with humans and spawned nephilim. Now Michael resides in John, appearing only to him, lending him strength, and sometimes taking control of his body. Michael's Apoca is named Giselle, and is known to be particularly difficult to control. Heavenly Knights Corps Micky A powerful member of the Heavenly Knights Corps. He is a myth among the Knights of Darkness because he is so brutal and he has passed up promotion just so he can continue to kill demons and members of the Knights of Darkness. He also bears a resemblance to someone Michael knew 400 years ago, Mateo, although Mateo is dead. The resemblance even extends to his Apoca, which is the same as Mateo's. His Apoca is a large single-edged sword with leather straps that wrap around his hand and part of his arm. Demons Lucifer Once an angel of the Grigori unit alongside Michael, Lucifer became disillusioned and fell to become a great demon leader. Beelzebub The first angel to rebel, Beelzebub was unwilling to serve humans after God created them. His rebellion began the millennia-long war between angels and demons. Now he is the leader of the demons. Samuel A powerful demon under Lucifer, Samuel likes to fight as dirty as possible. At one point he possesses Emily, a young girl who has befriended John, and forces him to fight her. Samuel also seems to be the only demon with the ability to raise the dead as his puppets, as shown when he kills two Heavenly Knights and uses their reanimated corpses to fight John. Darkness Knights Corps Severus While he was once a member of the Heavenly Knights Corps and Micky's best friend, Severus joined the Darkness Knights Corps so that Samuel would resurrect Micky's girlfriend and Severus' love, Maria. Severus was an orphan, but he was raised by the Heavenly Knights Corps in one of their fortresses and thus knows how the Heavenly Knights Corps