[He spies that filter, and nods. Guess it's not something he wants out in the open.]

But still the same. Huh. [His gaze looks a little far away for a moment. It sounds almost like Sora and Roxas. Different, but still the same. He gets it.

A thoughtful pause, until he looks back up.] So I guess that explains why someone else was calling himself 'The Doctor'. But how do I distinguish you from them?

...Eleven?