It is said that he ate his children in order to not lose his power. Kronos is considered, as usual, as an evil god and a bad parent. It is also seen that Kronos can spawn hordes of Makhai from his very own flesh, or at least project them from the rivers of lava on Tartarus. He is capable of projecting massive waves of lava from his arms. Lines of lava surround Kronos' body, mouth, and eyes, which would suggest that the inside part of his body is completely composed of lava. Kronos' current physical form is composed of lava and molten rock. Kronos is the King of the Titans, the Father of the Gods. The titan is defeated when Perseus throws the Spear of Trium down his throat, causing Kronos to explode into ash and lava, ending his short-lived reign of terror. During the battle, Kronos sees Perseus flying towards him, and attempts to kill the demigod with fire. When hurt by his son's combined powers, Kronos proceeds to strike the ground, which critically wounds Zeus. While sending his Makhai to destroy Andromeda's defenses, Kronos is confronted by Hades and Zeus, who use their powers to protect Andromeda's people while waiting for Perseus to form the Spear of Trium.
Both Makhai and Chimeras are seen to be affiliated to Kronos rather than Hades. Kronos continues with his plan to destroy humanity despite not having Hades on his side, as his son redeemed himself after Zeus asked for forgiveness.
When Hades and Ares bring Zeus to Kronos, the titan drains his son's power, and after a lengthy process, manages to break free from the mountain. Wanting to escape from Tartarus, Kronos speaks to Hades and tells his son that he will allow him to live if he conspired to steal Zeus' power. After being defeated, Kronos was imprisoned into the walls of Tartarus in the Underworld, where he was stripped of his powers while his children ruled humanity. Despite his attempts to kill his children, he was defeated by Zeus, Poseidon, and Hades, who used their weapons created by Hephaestus to defeat him alongside Hades' creation, the Kraken. He would have children with an unnamed mate, but he attempted to kill them, presumably so they wouldn't usurp him.
Kronos was the Titan god of time and was the king of the Titans, and according to the film's director, helped create the Earth.