For ease of working (And since I didn't immediately find another website that had done it yet) here is a quick gallery I did of the new-ish faces (Or those faces who own less famous names)...

(Assuming the OT cast, Serkis and Sydow aren't new to anybody here)

Daisy Ridley - Don't recall seeing her in anything?

John Boyega - Pretty good in 'Attack the Block'.

Adam Driver - Seen the face but not anything that face has been in... but I like the face.

Oscar Isaac - Amazing in every film he is cast in (Even in the bad films). Awesome sauce!

Brian Gleeson - A very memorable performance in 'Dredd' 2012.

This cast list really fills me with confidence and there isn't a single wtf?!? casting choice in there...

...wait, what? No Billy Dee Williams? WTF?!?