Davros
Davros, Creator Of The Daleks
Davros is the brilliant Kaled scientist, who is the creator of the Daleks. First encountered by the fourth doctor on the planet Skaro, in the story Genesis of the Daleks. The Kaled race were in a 1000 year war with the Thal race, as a result of nuclear warfare, Davros knew that each race were slowly mutating, so he sped up the rate of mutation in a sample of the kaleds, and reached what he saw as their final mutation stage. Calling them his travel machines, he encased each mutation within a 'metal cage'. styled on his mobile life-support machine. These mutations were devoid of any sort of emotion, believing that anything unlike themselves must be exterminated, which lead them to overthrow and apparently destroy their creator, Davros.
Davros did appear in other classic stories, such as Rememberance of the Daleks, and Revelation of the Daleks. The Daleks consistently went back to their creator to learn more and advance the Dalek race further, this ultimately lead to Davros leading them into the Last Great Time War, in which he was lost in the first year of the war as his command ship flew into the Jaws of the Nightmare Child.
In the revived series however, Dalek Caan, of The Cult of Skaro, flew into the Time-locked time war and rescued Davros from the command ship. Davros then went on to create a new race of Daleks produced from cells of his own body, whilst taken planets from the sky and creating the reality bomb, to destroy all life in the cosmos.