Anyone not another version of Ten
So, he was in a strange nexus were people from all over time and space, and even alternate universes, kept finding themselves. No explanation. There was at least one alternate version of himself about. He didn't like to think about what he knew about that universe at all. Best to just go the other way, if he saw himself, until he'd had some time to digest this new information.
Still, it was hard to tell how worried about this anomaly he should be, so he should gather some more data. The town itself seemed real enough. Maybe he could find a place to get a spot of tea, and find someone else to talk to. He wandered down the street looking for a shop with tea, and other customers. He wondered if he'd see any familiar faces, aside from his own.