The Daleks are a destructive creature from the British science fiction television series Doctor Who. They are a race of genetically modified aliens, created by the scientist Davros, and are one of the most iconic villains in the show. The Daleks are known for their aggressive behavior and their catchphrase 'Exterminate!' which they use to threaten other species. They are also equipped with powerful weapons and armor, making them a formidable enemy.