Those are Spektrum, but you can buy them at Hobby King for a lot cheaper. Spektrum has a great warranty on them, but with the figure, it's usually a one way trip...I went with Spektrum because I had a bunch around.

I also RCed a 1/1200 Yamato and a 1/700 Bismarck, using them to move turrets, etc. Great little servos when size is a concern and you don't need a lot of torque.

Yes, there's just one affixed to the axle that the head rotates on, inside the torso. I sculpted the figure, building a ribcage, but you should be able to squeeze it in a hollow styrene figure like Trump or Tamiya.