Daleks

The Daleks were a warrior race (TV: The Witch's Familiar, Hell Bent) made up of genetically engineered mutants (TV: The Daleks, Genesis of the Daleks) belonging to fundamental DNA type 467-989. (TV: Daleks in Manhattan) By most accounts they were originally from the planet Skaro. (TV: The Daleks) The mutants were encased inside an armoured travel machine built from polycarbide (TV: Remembrance of the Daleks) and the metal Dalekanium. (TV: The Dalek Invasion of Earth)