Dalek (Jubilee)
A Dalek was part of the Dalek invasion of Earth in an alternate 1903.
With its self-destruct mechanism damaged it was captured and imprisoned in the Tower of London from 1903 to 2003. The Dalek prisoner was tortured by commander Farrow and met the Sixth Doctor. The Dalek had compassion for Evelyn Smythe. Lamb gave back the Dalek's gun. It ordered him to kill Farrow, which he did. The Dalek viewed itself as a traitor or the one with the knowledge of the invasion's defeat. After realising the Doctor was right about how empires spawn people who turn against eachother, it killed the Dalek Supreme, connected itself to the Dalek command net and ordered all Daleks to self-destruct, which they did. The Dalek was killed by Evelyn on its request, negating the alternate timeline. (AUDIO: Jubilee)
Behind the scenes
Metaltron was this Dalek's counterpart in the television adaptation of Jubilee, Dalek.