Grey Dalek Type C

A distinct "shade" of grey Dalek casing was the third of three identified by the Time Lords. (PROSE: Dalek Combat Training Manual) This grey Dalek model was used by the Renegade Daleks subordinate to the Black Supreme Dalek. (TV: Remembrance of the Daleks)

History
A Renegade Dalek who wore the distinctive light-gray casing the Renegade Daleks was present in the Dalek City on the reconstructed Skaro, where its mission was ironically to protect the Renegade Daleks' old enemy, Davros. (TV: The Magician's Apprentice/The Witch's Familiar)

Props
Including the Supreme, a total of six repurposed props were used to depict the Renegade Daleks in Remembrance of the Daleks.

Merchandise

 * A figurine of the "Renegade Faction Dalek" was released with issue 173 of Doctor Who: Figurine Collection magazine.

Other matters

 * In their list of real world paradigms, The Dalek Handbook counts the Renegade Daleks and their Supreme Dalek in a "1985-1988" paradigm with their enemies, the Imperial Daleks and the prototype Necros Daleks.