Especially the jump reminded me of Troughton in the invasion but also some of the hand mannerisms. Just my opinion but he certainly seemed more alien than Tennant's doctor did or for that matter Peter Davison's (who was of a similar age). I can't wait for the next series

I agree, just a hint of troughton about him, which can only be a good thing!

For me it had a hint of a certain Mr T Bakers doctor...to early to say though!

I think Troughton is Stephen Moffat's favourite doctor

Yeah it is definitely too early to say. I think Tennant was a mix of 4 and 5, whereas Ecclestone was a mix of 1 and 7, so i really hope we get some Troughton in there this time, but you really can't tell in 30 seconds

thats exactly who i thought of, Troughton, im so looking forward to Spring

I too think it's very Troughtonesque. Not only is those few seconds last night, but in his cotume (upper part "cleaned up Troughton" and bottom half "the Troughton scruffy git"). And in some interview (Radio Times?) Stephen Moffat says Matt's Doctor is "quiet, very quiet" which is also reminiscent of Troughton.

I still see him dressed as Jimmy Olsen from the George Reeves era of Superman.

For all that MS is the youngest Doctor so far I think he has one of those faces that can look older at times, and when combined the with mannerisms and dress and the fact that most of the last few Doctors have been relatively young compared to the first few I think before long I'll forget he's a comparative whippersnapper.

I didn't think so at the time, but now you mention it - and watching the series 5 trailer - I would say, yes - there is certainly an element of Troughton about his performance.