Davros was a Kaled born on Skaro during the Kaleds-Thals war. He was a brilliant scientist that was greatly wounded by a Thal bombardment of his laboratory, which cost him his left arm, entire lower body and left his eyes with severe damage. As a result, he was forced to spend the rest of his life confined to a mobile life support system attached to a wheelchair, and an eyestalk-bulb in his forehead, giving him partial eyesight.

In an attempt to end the war, he created the Daleks. However they wiped out both the Thal and Kaled races, and tried to exterminated him but he survived thanks to his life support system. Davros was thought to have died during the first year of the Time War, but was saved by Dalek Caan. He was buried alive when the roof of the building he was in collapsed on him.