I'm thinking random nordic black metal band member with corpse paint on his face, consistent with the kinda running theme of 'no full faces visible'. If I have to complete this to a full 4-char pack I'd add Morrissey, because, duh... Morrissey!
Last two slots go to a middle-aged Michael Caine, again, and maybe, quite randomly, a native American / American indian, because they're awesome!
Also, hi everyone! First post here, been lurking for a couple of weeks and finally decided to register.