"But you know what? Matt Smith, man. In the middle of this train wreck, he does a bit with a severed Cyberman head that actually finds a heartstring. When Handles finally craps out and “dies,” Smith, in his late-middle-age makeup, calls his name a couple of times and stares at the thing. The look on his face evokes memories not just of the similarly robotic K-9, but also of all the other companions long gone. Another one, his face says. I’ve lost another one."