I am without words.
Never mind, I do have words. I saw him in The Ruby in the Smoke and, well, he's just a kid! I'm not concerned too much about his actual age because I'm sure there are 26-year-olds who could portray a Time Lord, but I am concerned that this particular person won't be able to pull off being 900 years old.
Then again, I'm still feeling personally wounded that David is abandoning DW, so take my opinion with a grain of salt.
