Lake (The Lady in the Lake)

Lake was a clone of River Song.

Lake was created on Demons Run by Madame Kovarian, along with several other clones. Sometime after escaping Demons Run he was tending to fuel cells with Wadi and when one of the cells blew up in his face and the explosion caused him to regenerate.

Lake 2 was taller than his previous incarnation, looked younger, had a thinner face, had different colored eyes and hair, was left-handed, and had an allergy to cheese. At first the other clones did not believe he was the same person, despite Wadi's confirmation of witnessing his transformation, but eventually they grew to believe him and regarded him as a spiritual leader of their group. (AUDIO: The Lady in the Lake)