Uncle (The Doctor's Wife)

Uncle was a patchwork person who helped House lure Time Lords and their TARDISes to him.

Biography
Uncle found himself on House when a temporal rift caused him to be transported there. On the asteroid, he lived with Auntie, Nephew and Idris. Like Auntie, he snatched body parts from Time Lords that winded up on House. He died when House left the asteroid.

Uncle's age is unknown, but he may have been in his fifties, as the Doctor noted that he had the eyes of a twenty-year-old, but that the rest of his body was thirty years older. However, Uncle may not have had any of his original body intact by the time the Doctor arrived.