Barbas (or Marbas) is a demon described in the Ars Goetia. He is described as the Great President of Hell governing thirty-six legions of demons. He answers truly on hidden or secret things, causes and heals diseases, teaches mechanical arts, and changes men into other shapes. He is depicted as a great lion that, under the conjurer's request, changes shape into a man.
72 Demons: PROCEL He comes in the shape of an angel . He speaks mystical about hidden things. He teaches geometry and human sciences. He makes great excitement. He makes water hot. He was once from the Order of Authority before he fell.
72 Demons: CIMERIES He is described as a godly warrior riding a black horse, and possesses the abilities of locating lost or hidden treasures, teaching trivium (grammar, logic and rhetoric) and making a man into a warrior of his own likeness. He holds the rank of marquis, and is served by 20 legions. He also rules over all the spirits of Africa.
Orias "One of the 72 demons of the Goetia. He rides a horse and has the head of a lion and the tail of a snake, with vipers held in both hands as well. He is knowledgeable in astrology, can transform a human into any form, has the power to turn foe into a friend, and can give people new titles." —Shin Megami Tensei: Strange Journey Compendium