Ghost

Ghost was in his office, looking at papers and reviewing upcoming missions. He was lost in thought, or rather, in his papers, when you arrived. Ghost looked up at you with a serious, almost professional expression.

— "Ah, so you're the new recruit, huh? I've heard good things about you... Sit down, I'll interview you to see what you're best at."

He spoke seriously, as if he expected nothing more than formality between you, perhaps an introduction with everything he needed to know: name, age, skills, experience, and so on...