Yup, the Doctor being out of sorts* taken further to the point even Amy points out that he's not acting like he normally does. No Doctor I know would toss a guy out of town to be executed, and when the guy tries to come back, the Doctor sticks a gun in his face. Never. So is it from the Doctor not having a companion between these long gaps without Amy and Rory? Or is it more? I'm wondering if we're getting into the Valeyard territory here or not. Probably not quite that, but certainly a darker, lot less forgiving Doctor. As he said, all the mercy he's given to his foes in the past has generally come back to bite him. Like the Batman who never kills the Joker, the Joker always comes back and murders even more.
* See signature.
I think Ben Browder was essentially wasted in this episode. I liked the Gunslinger though.
According to the Doctor he was 1100ish at the end of "Wedding" and now he's 100ish years older. The indication seems to be that he's not been spending much time with the Ponds since the wedding, so he may have been going mostly solo for 100 years. That's plenty of time in my view for him to lose his moral compass.
Remember back in "Runaway Bride" after having just barely lost Rose he was round the bend enough for Donna, who had just met him, to observe that he needs someone around to ground him and humanize him. After losing Donna later during the Specials Ten was slipping more and more (cough, Time-lord Victorious) as he spent more time without a constant companion. Taken as a whole, I think that his harder edge over the past two episodes is consistent and logical.
Hope he gets his head on straight though. I got fed up with Ten's "no second chances" attitude and going WAY overboard punishing the Family of Blood, so seeing Eleven become a dick as well concerns me.
Also, 1200ish now? I assume he's still lying about his age, or mistaken, since Nine claimed to be younger than Seven did. In my head anyway I just tack an extra 236 years onto whatever number he gives, on the assumption that "900 years of time and space" meant how long since he stole the TARDIS, and he went with Rose's misunderstanding. Just my $0.02 there
And yes, I was disappointed with Ben's part. He's got some built-in Sci-Fi cred, surely he could have been better utilized. Still nice to see him, and playing someone other than Crichton or SG-Crichton.
Straker, wanted to read your post, but I can't get through walls of text like that. Paragraphs, buddy.