The voice acting in Destiny is just incredible. The Queen and her brother are the high points for me, though I also really appreciate the growls and animalistic noises of the aliens, and the robotic gurgles of the servitors.
Being a Dee Bradley Baker fan (Appa and Momo in Avatar: TLA cartoon, among others), I'm constantly amazed by actors who consistently provide the voices for the voiceless.
I hope for many more scenes with the Queen and her brother (maybe the infamous Queen's brother pointing the gun scene?) in House of Wolves.
Thank you, Bungie, for this game.