Creek (The Lady in the Lake)
From Tardis Wiki, the free Doctor Who reference
Creek was a Proto-Time Lord clone of River Song. After the Eleventh Doctor raided Demons Run, Creek escaped on a ship with the other six clones. As part of his religious cult, Lake convinced them to die multiple times on Terminus Prime so he could covertly study regeneration and find out how long he was able to live. (AUDIO: The Lady in the Lake)
