Lets see how many I can guess without looking...
Butcher
KPalms
Stafford
Greene
Wood
Coleman
Lovejoy
Prout
Santini
Severson
Moore
Kinkaid
Gibbons
A bunch of those are guesses, but obviously not Bratt, Hischier, Mueller, Zacha, or Johansson. I don't think Hall's played for team Canada, but I'm pretty sure he had a monster year in the CHL before being drafted, and I think Henrique was on his line too. So that's six. Noesen I'm guessing is European based on the name, but other than that I have no idea. Boyle I don't remember but I think he's Canadian for some reason. Moore I'm going with American because of his dad's interview last night. That was so awesome.
Edit: Damn, I was all over the place. Boyle and Noesen are both American. So is Schneider. How did I forget that.