Daleks

The Daleka are beings of racial purity, who believe all other beings to inferior and worthy of only one thing; extermination.

Biography
The Daleks were created by Davros. After attempting to wipe out the Thals once and for all (The Daleks), invading the Earth in the far future (The Dalek Invasion of Earth) and attempting to destroy the First Doctor and his companions once and for all in a chase throughout space and time while also fighting the Mechanoids (The Chase), the First Doctor defeated The Daleks seemingly for good during their attempt at galactic conquest (The Daleks Master Plan). Some factions survived throughout the universe, however, and one came together and formed a colony within a countryside house in Somerset, 2003. When the Doctor arrived, however, the Daleks focused on exterminating the one human intruder who somehow went unnoticed until the Spy Dalek spotted him. After successfully identifying the intruder, they opposed to capturing him and instead decided to take him out with their latest plot; exterminate all humans in the city Wells, then all throughout the planet Earth. As the Daleks violently chanted preparing to attempt to conquer the universe a second time, the Doctor connected a reprogrammed radio to the Daleks' main computer and ordered all Daleks be destroyed. As they exploded one by one, The Daleks were defeated once more. The Spy Dalek, however, was independent to the computer and survived the ordeal, singling for help as the Doctor left the colony (Colony of the Daleks).

Trivia

 * The colony of Daleks was portrayed using footage from The Power of the Daleks from 1966 and Day of the Daleks from 1972 with the voices redone by Astile and his mother, Lisa.
 * The actual Dalek prop belonged to the house Astile was staying at for the weekend, although its creator and true owner are unknown.
 * In-universe, the house was bought by a selfish businessman, similar in personality to Henry Van Statten. He had hoped the Daleks would give him a place in their new world, but he was exterminated shortly after helping reconstruct the house's largest areas into a colony.