White Dalek

White Daleks were Daleks who were distinguished by their white casings. (PROSE: Remembrance of the Daleks)

Imperial Daleks
Dalek drones created by Davros in opposition to the Black Supreme Dalek were white with gold livery. Following the initial Necros Dalek prototypes, they became known as Imperial Daleks and fought in the civil war with the grey Renegade Daleks loyal to the Supreme Dalek. Variants included the Special Weapons Dalek and Davros himself, as the Emperor Dalek. (TV: Revelation of the Daleks, Remembrance of the Daleks)

Time War
Pure white Daleks appeared during the Last Great Time War among the many units on Moldox who surrounded the War Doctor and Cinder. (PROSE: Engines of War)

Post-Time War
Following the Last Great Time War, a white Supreme Dalek served as leader of the five archetypes of the New Dalek Paradigm. (TV: Victory of the Daleks) Later, it became subordinate to the Dalek Emperor, (GAME: City of the Daleks) and then the Prime Minister of the Daleks. (TV: Asylum of the Daleks) As a result of the many failures of the New Paradigm, the original Supreme lost its power within the resurrected Dalek Empire. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe)

White Daleks, identical in shape to the basic bronze Daleks, were among those that commandeered the Gallifreyan warship Starbane before it was destroyed by the Twelfth Doctor and Lumpy. (GAME: The Doctor and the Dalek)

Behind the scenes

 * In Dalek Hack, the player has the option to turn a Dalek's casing white, shaped identically to the bronze Dalek but matching the Supreme Dalek of the New Dalek Paradigm.