Dalek mutant

Dalek mutants (AUDIO: Order of the Daleks, The Ultimate Adventure) or Kaled mutants (TV: Destiny of the Daleks) were the mutated descendants of the humanoid Kaleds of Skaro that became the Daleks, the organic occupants enclosed in protective armour and weaponry, mounted in the upper parts of the Dalek travel machines. The Third Doctor once described the Kaled mutant to Sarah Jane Smith as "a living, bubbling lump of hate". (TV: Death to the Daleks)

Biology


Dalek mutants had a fundamental DNA type of 467-989. (TV: Daleks in Manhattan) They were cephalopods, being large brained creatures with tentacles, though young mutants were globular, soft and shapeless with tendrils. (TV: Genesis of the Daleks) The Eleventh Doctor claimed that "there [wasn't] a bone in [a Dalek's] body," (TV: Victory of the Daleks) although one dead Dalek mutant's carcass, found by Steven Taylor on the planet Shade did contain some "bone" as well as "gristle" within the rotting "bladder" of the mutant's body. (AUDIO: Across the Darkened City)

Although usually dependent on their travel machines for offence/defence, the bare mutant could be dangerous; even the young were quite lethal and capable of strangulation with their tentacles, and, in this way, attacked the fourth and seventh incarnations of the Doctor. (TV: Genesis of the Daleks, Remembrance of the Daleks) The Fifth Doctor once said that they had a deadly sting, and during a 1984 incursion into London, one of these creatures, separated from its casing, attacked and injured a human soldier without difficulty. (TV: Resurrection of the Daleks) Constance Clarke theorised that the mutants had a venomous bite. (AUDIO: Order of the Daleks) When removed from its casing, a Dalek reconnaissance scout was capable of controlling a human's movements, and using them as a vehicle instead. (TV: Resolution)

Daleks were hard-wired to keep living no matter what happened, (TV: The Witch's Familiar) and one Dalek remained operational for four thousand centuries. (AUDIO: The Lights of Skaro) Despite this, Dalek mutants still aged and over time the body would break down and liquefy. On Skaro in the Dalek City decaying Daleks were stored in the city's sewers, and the Dalek word for sewer was the same as their word for graveyard. (TV: The Witch's Familiar)

According to some accounts, the voice of a Dalek was electronic as the actual vocalisations from the mutants amounted to little more than squeaking sounds. Without the assistance of their casing, they were unable to produce speech as they did not possess tongues or vocal chords. (TV: Resurrection of the Daleks, AUDIO: Jubilee) Other accounts differed, suggesting that Dalek mutants, even in an advanced state of decay, could "mewl" in an approximation of the usual Dalek voice. (TV: The Witch's Familiar)

Dalek mutants were quite possibly fatal to a Time Lord when eaten. (PROSE: The Scarlet Empress) However, their "Dalek juice" could be ingested by humans with no apparent ill-effect, though some people found it flavourless, or disgusting. (AUDIO: Jubilee)

The Daleks could not survive long outside their casings. After a while, their lungs would collapse, their hearts would fail, and their brains could liquefy. (AUDIO: In Remembrance)

The mutants on occasion demonstrated an accelerated healing ability in response to localised wounds. One Dalek mutant in particular, while being tortured by Commander Farrow, began to repair its damaged body, its flesh growing over Farrow's hand and burning it. (AUDIO: Jubilee) On one occasion, the Kaled mutant of a recon scout survived the destruction of its casing and being trisected, going into hibernation with the pieces being separated across Earth for over a thousand years. After one piece was awakened via ultraviolet light, the mutant was able to use a spatial shift to pull the pieces back together and reform itself. (TV: Resolution)

Variations


Dalek mutants often varied in appearance, as the Daleks continuously altered their DNA, (TV: Victory of the Daleks) though kept the same basic structure of a relatively-octopoid species with a comparatively large brain. Because the mutants were genetically designed to "not die," as they aged they would degenerate and liquefy. (TV: The Witch's Familiar)

Davros's original mutants were yellowish-green globs with tendrils able to lash out and choke someone. (TV: Genesis of the Daleks) Thousands of years later, during the Dalek-Movellan War, there were mutants in the Skarosian wilds. These appeared as gurgling pink blobs that could stretch and be handled, but had no apparent tentacles, brain, or eyes. It was unknown why these mutants were not in Dalek casings, but at this point the Daleks were described as a "race of robots" that had once been organic. (TV: Destiny of the Daleks)

Other mutant variations included one that possessed a clawed "hand", during a time when the Thals believed the Daleks' mutation had not come "full-circle" and that they had not reached their final form. (TV: The Daleks) Other mutations were green blobs with tendrils that were "scooped" into their casings. (TV: The Power of the Daleks, The Evil of the Daleks)

During the Imperial-Renegade Dalek Civil War, the mutants were eyeless and green with whip-like tentacles. (TV: The Five Doctors, Resurrection of the Daleks) The Imperial Daleks commanded by Davros were surgically altered, with their appendages physically grafted into their machines, which the Renegade Daleks saw as impure. (TV: Remembrance of the Daleks)

Others, after the Last Great Time War, were pale-pink, blue-green or green-brown with one large functioning eyeball and a small vestigial socket. The remnants of a face could be seen, more clearly on some mutants than on others; as well as the functioning eye and the sealed-up eye, a nose and mouth were vaguely discernible. (TV: Dalek, The Parting of the Ways) The mutants created using human cells produced small, blue-green creatures, apparently consisting purely of a head, with two eyes and an overall clearer "face". (TV: The Parting of the Ways)

Dalek Sec had lower tentacles that were long enough to grab hold of an adult human and an unusual, trunk-like appendage that could envelop and carry a whole adult human. (TV: Daleks in Manhattan)

Mutants of the New Dalek Empire were grown by the cells of Davros' own body, (TV: The Stolen Earth) meaning they were not "pure" Daleks. Survivors of the encounter with the Doctor, using a progenitor, tricked the Eleventh Doctor into helping create a New Dalek Paradigm, possessing pure DNA but still maintaining the appearance of other post-Time War mutants. (TV: Victory of the Daleks, Asylum of the Daleks, Into the Dalek, COMIC: The Only Good Dalek, GAME: City of the Daleks, The Doctor and the Dalek)

Display
While most Dalek mutants were hidden within their casings, certain individuals had their true form on open display including several Dalek Emperors. The mutant form of the Dalek Emperor who ruled during the Last Great Time War, was visible through a glass case within its immense casing, (TV: The Parting of the Ways) as was that of the Emperor who ruled the New Dalek Paradigm in an alternate timeline. (GAME: City of the Daleks)

After breaking the time-lock and retrieving Davros from the Time War at the cost of his sanity, Dalek Caan resided in the Crucible, the heart of the New Dalek Empire, in a broken casing which exposed his mutant form. (TV: The Stolen Earth/Journey's End)

The Parliament of the Daleks was led by the Prime Minister of the Daleks, who situated itself in a clear glass tube where it was protected by the rest of the Parliament who were armed and would protect him. (TV: Asylum of the Daleks)

History
For an account of the creation of the Daleks, see separate article. Dalek mutants appeared different over time, and, as noted above, during the war between the Imperial and Renegade Dalek factions, the two sides had physical differences, with Davros' side now altered into true cyborgs and physically made one with their travel machines, (TV: Remembrance of the Daleks) whereas they had only used the casings as battle armour and were not actually integrated into them. (AUDIO: The Four Doctors)

Iris Wildthyme once became fatally ill after eating a live Kaled mutant. (PROSE: The Scarlet Empress)

Daleks, with casing variants from across their history, returned to Skaro to make it anew. The Dalek City possessed "living" sewers where the walls were made of decaying, liquefying, enraged mutants that would attack other Daleks if they could. When rejuvenated by Time Lord regeneration energy the decaying Daleks rose up and destroyed the Dalek City. (TV: The Witch's Familiar)

In the far future, Dalek mutants infested the ruined weapons factories on Villengard as the Daleks repeatedly tried and failed to kill Rusty, the "good Dalek". When the Twelfth Doctor came to Villengard to see Rusty, the mutants menaced him as well as his first incarnation, Bill Potts' glass avatar and Archibald Hamish Lethbridge-Stewart, the latter of whom mistook them for rats. However, they were soon warded off by the Doctors using the elder Doctor's sonic screwdriver. Though it took time for the younger Doctor to realise what exactly they were, he was able to partly recognise them on sight, having encountered such mutations on his first visit to Skaro. (TV: Twice Upon a Time, PROSE: Twice Upon a Time)

A reconnaisance scout that appeared on Earth in the 9th century, suggested by the Thirteenth Doctor to be the first out from Skaro, survived being cut into three pieces after losing its casing to a human army in the Battle of Hope Valley. Practising caution, the Three Custodians took each piece to different parts of the planet, and ensured that they were guarded by their descendants, so it would not recover. However, the third Custodian was shot by an arrow in Yorkshire, before he could complete his journey. On New Year's Day 2019, the Lost Custodian's piece of the Kaled mutant was found by archaeologists Lin and Mitch. Inadvertently revived under ultraviolet light, the piece summoned its other parts. The Dalek subsequently took control of Lin, and used her to gain intelligence, acquire transport, and retrieve its old gunstick. Using remnants of its old shell, combined with spare parts found at Dinkle's farm, Lin built this Dalek a new metal casing. Letting Lin go, the Dalek went on a rampage before it was stopped by the Doctor and Team TARDIS using a microwave oven which melted its new casing. Though the mutant latched onto Aaron Sinclair, it was finally thwarted when the Doctor jettisoned it from the TARDIS into a supernova. The Dalek attempted to take Aaron with it, but Ryan managed to reach his father who fought off the Dalek's control while his son pulled him to safety. (TV: Resolution)

Behind the scenes

 * In the first TV appearance of the Daleks in The Daleks a single clawed hand of the mutant (a reptilian-like hand with three golden nails in the remake film Dr. Who and the Daleks) was revealed. The comic The Dalek Chronicles and other media revealed many "facts" about the Daleks which did not appear on television. Nevertheless, the full appearance of the inner creatures remained undisclosed until The Power of the Daleks on television, in the form of newly created creatures. They appeared in their adult form in The Evil of the Daleks. Both appeared as eyeless shapeless creatures with tendrils.
 * They first appeared in colour in Genesis of the Daleks (as young) and as adults in Destiny of the Daleks. In the latter story, the Fourth Doctor makes statements which imply that the Daleks have now abandoned any organic component and have turned themselves into robots. Future stories did not explain or elaborate and returned to the previous concept of the Daleks as ultimately organic. The Five Doctors showed much of the adult Kaled mutant for the first time.
 * From Series 1 onward, the Kaled mutants went through a major re-design. They now had a single functional eye, more defined bodies and 11 ropy tentacles, though the mutant seen in City of the Daleks had 12 tentacles instead of the usual 11.