"Ranger's Apprentice" cast! Extended.

I've seen so many cast propositions for the movie based on this fantastic story by John Flanagan. I picked something from several of them - best fitting to my imaginations and that's how this video arrived.
In the moment of making this, I had read parts 1 - 10 of "Ranger's Apprentice". This means that my video doesn't consider some characters from parts 11 and 12. I also omitted roles of Omar and Berrigan, as I was too lazy to look for the actors. Not that it was too difficult, I just thought I'm tired.
Afer reading part 11 and "Tournament at Gorlan" one more thought came to me - that Bill Nighy could actually came out good as Morgarath, due to his jaw and age. Nevertheless, I decided not to change Zach McGowan just because I always have imagined Morgarath in the way Zach looks, before reading the "Tournament" and part 11. With snow-white hair, of course...