In Greek mythology, Kratos or Cratus (Ancient Greek: Κράτος, English translation: "power") is the son of Pallas and Styx and the personification of strength and power. Kratos and his siblings—Nike ("victory"), Bia ("force"), and Zelus ("zeal")—are the winged enforcers (sky tides) of the Olympian God Zeus. He makes an appearance in Aeschylus's Prometheus Bound, in which he is one of the trio that binds the titular Titan, the other two being Hephaestus and Bia.
In popular culture
Kratos is the protagonist's name of the God of War video game series for Sony's PlayStation consoles. This Kratos, however, has no relation to the mythological Kratos, with two exceptions. In the mythology, Kratos binds Prometheus, where in the video game God of War II, Kratos frees Prometheus. The video game Kratos is also the personification of power and strength. In Tales of Symphonia, Kratos is a warrior who is part of group known to be angels.