Daleks

Dalek
Daleks are the main enemy of the Doctor in the long running British, sci-fi series Doctor Who. The Daleks are a race of Kaled mutants concealed in moble shells who hail from the Planet Skaro. Their main objective is to reign supreme over the Universe and destroy every other species.

The Daleks have become a very famous icon for Doctor Who, mainly for their catchphrase "EX-TER-MI-NATE!".