Kratos...was a Spartan who who was an angry man..he always used to kill people. One day his wife and daughter calophe was taken away from him...Ares the god of fire controlled kratos and kratos himself killed his wife and daughter..he was so sad and ANGRY he wanted to kill Ares
Kratos embarks on a series of often forced adventures in attempts to avert disaster or to change his fate. He is usually portrayed as being oblivious to all else, often engaging in morally ambiguous activities and performing acts of extreme violence. He is a Spartan warrior who becomes the "Ghost of Sparta" after accidentally killing his family on behalf of Ares' trickery. He becomes the God of War after killing Ares, and is eventually revealed to be a demigod and the son of Zeus, who betrays Kratos. Each adventure forms part of a saga with vengeance as a central theme, providing additional information about Kratos' origins and his relationships with his family and the gods. Kratos is portrayed as anantihero,[16] often performing questionable actions. Although backstory is seen in the original God of War, Kratos' childhood is revealed in Ghost of Sparta and the birth of his daughter is explored in the God of War comic series. In Ghost of Sparta, it is revealed that an oracle had foretold that the demise of Olympus would not happen by the hands of the Titans—imprisoned after the Great War—but rather by a mortal, a marked warrior. The Olympians Zeus and Ares believed this warrior to be Deimos, Kratos' younger brother, who has strange birthmarks. Ares interrupted the childhood training of Kratos and Deimos in Sparta and kidnapped Deimos. Kratos attempted to stop Ares, but Ares swept him aside and scarred him across his right eye. Taken to Death's Domain, Deimos was imprisoned and tortured for many years by the god of death, Thanatos. Believing Deimos to be dead, Kratos marked himself with a red tattoo, identical to his brother's birthmark, to honor his sibling.[12]Through flashbacks in the comic series written by Marv Wolfman, Kratos meets his wife Lysandra and they have a daughter named Calliope. Upon birth, Calliope was stricken with the plague. In order to save his daughter, Kratos was granted a quest to find the Ambrosia ofAsclepius, an elixir with magical healing properties. Five of the gods entered into a wager with Ares: each chose a champion to search for the Ambrosia with Ares' champion being Kratos. Kratos overcame all obstacles, including the Barbarian Prince Alrik, who eventually became the Barbarian King, and saved his daughter.[17][18][19]
Via flashbacks in God of War, it is revealed that Kratos became the youngest captain of Sparta's army (also shown in the comics), but had a thirst for power. When Kratos was faced with total defeat at the hands of a barbarian horde led by the Barbarian King, the Spartan called to the Olympian god Ares for aid. Kratos was given the Blades of Chaos, destroyed his enemies, and blindly followed Ares, killing hundreds in his name. After Ares tricked Kratos into murdering his wife Lysandra and daughter Calliope in a temple dedicated to Athena, the Spartan was shocked out of his bloodlust and renounced service to Ares. As the temple burned, a village oracle cursed Kratos and condemned him to wear the "mark of his terrible deed"; the ashes of his family, which turn his skin white, earning him the title "Ghost of Sparta".[20]