Lis' Doctor
Then, he showered again, ate again, drank more water, put on fresh clothes that still didn't involve his coat because he was disheartened every time he felt how big it was on his wasted frame, and went out in search of the Doctor. The TARDIS was a bit of a clue, but he wasn't confident enough to use his key, stopping outside instead to rap a rhythmic knock on the closed doors.
And belatedly hoped that River wasn't around.