Wow.. that was... brilliant!
And written by RTD!
Does.. not.. compute...!
I thought that as well, I sighed when I saw his name but it was a fantastic episode, a great insight into the the nature of humans and some of the most uncomfortable televsion I've ever seen. Tennant's acting towards the end was fantastic, you could see The Doctor's pain in his eyes
The preview for next week looks even better! FINALLY!
I'm not looking forward to that, that's because I hate the guest star*
*Trying to come up with a non-spoilery way to say it