The player controls War, the first of the Four Horsemen of the Apocalypse. Along with the rest of the Horsemen, his sole duty is to be summoned to the Earth once the final battle of Armageddon begins. War is not aligned to either Heaven or Hell but instead serves to bring order by the rule of The Charred Council, whose purpose is to maintain the balance between the two forces. He maintains a strict code of honor and will battle any obstacle in his way.
Throughout the story, War is bound to and accompanied by The Watcher, a warden sent by the Charred Council to watch over and guide War on his journey. Because of his assigned role, he is actually skeptical and cynical towards War’s actions, much to War’s anger. He relishes in his duty and enjoys needling War and bossing him about simply because he can. War later employs the guidance of Samael, once a mighty and feared demon, now imprisoned, who himself seeks vengeance against the Destroyer, leader of the victorious forces on Earth. Many other characters become central to the overall plot, recurring at times. Among these is Uriel, leader of Heaven’s armies after their first leader, Abaddon, was killed during a major battle; now stranded on Earth seeking vengeance against those she believes responsible. Another recurring character is Vulgrim: a demon merchant who provides gear and abilities for War in exchange for human souls. Finally there is Ulthane, also known as the Black Hammer, an “Old One” who first appears hostile towards War, but then the two quickly become friends; first after aiding War in getting into Griever’s lair then making War’s enchanted revolver and re-forging the Armageddon Blade for him. War is a powerful warrior with a strong sense of honor who will stop at nothing to gain revenge for being betrayed.