Aven. He was on Ursa. Kelvin from Orion and Rose from Cygnus all remembered a Doctor and Kelvin remembered him as the DOctor with the TARDIS. We weren't sure what was going on, we thought maybe he was changing his faces, but we didn't really have a way to confirm it.
But I just saw them, all...ten faces he had before the face he has now that Amy and I know.