Who Sunday: Planet of the Dead, Russell T. Davie & Gareth Roberts

Isn’t there a little Malcolm in all of us?

I really loved Christina, not the least because she proved to be such a cheerfully amoral counterpoint to the Doctor’s morose savior-complex. Okay, he has a reason to be morose, Davies ripped out his heart and fed it to the cat in the last episode, twice, but even he had to banter with Christina. And there’s this:

Christina: We could have been so good together.

The Doctor: Christina, we were.

Christina makes me think about what makes a good companion, and why the answer to that is so polarized. People love Rose, hate Rose, love Martha, hate Martha, love Donna, hate Donna, love Christina, hate Christina . . . is there a perfect companion? Besides Captain Jack, of course.

I would have signed on for a lot more Christina. Or Malcolm. More Malcolm would be good.