Not Davros, but Ray Cusick. Mr. Cusick designed the basic form of the Daleks 50 years ago. The Daleks were the first extraterrestrial villains introduced on Doctor Who. They are one of the most iconic designs in TV science fiction.
His design combined with the creatures’ synthesized voices (“Exterminate!”) has sent several generations of children around the world hiding behind the living room sofa.
The BBC reports that Mr. Cusick died after a brief illness at age 84.