Red Dalek (The Destroyers)
From Tardis Wiki, the free Doctor Who reference
In the late 40th century, a Red Dalek led the assault on the Space Security Service compound on M5. (AUDIO: The Destroyers)
According to the Dalek Combat Training Manual compiled by the Time Lords during the Time War, the Gallifreyans had done "meticulous research" into the Dalek conflict against the Space Security Service, mentioning that they had discovered how "a red Dalek leader" had served as a high-ranking officer during the campaign. This leader oversaw silver Daleks and was supported by a red-domed subordinate. (PROSE: Dalek Combat Training Manual)