Orthros has a massive appearance, the collar of thorns and the reinforcement shape reminiscent of a mastiff dog, always ready to snap. Without the armor, Orthros no human form, but it is a two-headed dog. It is probably the helmet to give him the gift of speech. E ‘able to move in the dark and manovare with telekinesis its collars, which represent two-headed dog that bite at a distance the enemy. After a hard fight, he dies because of the Aurora Execution.