Auntie (The Doctor's Wife)

Auntie was a patchwork person who aided the sentient asteroid House in bringing TARDISes to him.

Biography
Auntie was transported to House via a rift in spacetime, where she lived with Uncle, Nephew and Idris. Auntie stole body parts from Time Lords that found themselves in the junkyard, in return for doing the bidding of House. When House left the asteroid, Auntie, alongside Uncle, died. (DW: The Doctor's Wife)