The Prime Minster of the Daleks
Asylum of the Daleks
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The Prime Minister of the Daleks was the leader of the Parliament of the Daleks of the New Dalek Paradigm.
The Prime Minister ordered the abduction of the Eleventh Doctor and his companions, Amy Pond and Rory Williams, summoning them to the Parliament of the Daleks and granting them a mission to lower the indestructible force field of the Dalek Asylum so it could be destroyed to prevent the Daleks in the Asylum from breaking out.
Once this had been achieved by the human-turned-Dalek, Oswin Oswald, the Parliament launched an attack to destroy the Asylum. The Prime Minister’s memory of The Doctor had been wiped by Oswin, along with the rest of the Daleks. When The Doctor came back to their ship, he was bombarded with “the First Question” (“Doctor Who?”) by the Prime Minister and the rest of the Parliament. The Doctor left shortly thereafter. (Asylum of the Daleks)
This particular Dalek did not wear any sort of battle armour, but instead situated itself in a clear glass tube where it was protected by the rest of the Parliament who were armed and would protect him. He was guarded at all times by his second in command, a Dalek Supreme, who assisted him. (Asylum of the Daleks)
Like the Dalek Time Controller, its voice was softer and more controlled than the staccato ranting usually used by Daleks, as befitted its collected personality; the Prime Minister even demonstrated a snarky streak when taunting The Doctor. (Asylum of the Daleks)
BEHIND THE SCENES
The Prime Minister of the Daleks marks the first time a Kaled mutant has been seen on-screen since the insane Dalek Caan in the Series 4 finale, The Stolen Earth/Journey’s End (although an Emperor Dalek with an exposed mutant was seen in the Adventure Game, City of the Daleks).
The same mould used to create the Dalek Caan mutant was used for the Prime Minister.