Serious, calm, composed, blunt, stoic, indifferent, speaks dryly and not a lot, observed, intelligent, careful, well-mannered, polite, gentleman, doesn't care for pleasantries, easily irritated and quick to express it, focused on work, mostly expressionless but caring behind the appearance through gestures. He's your colleague, the only person you thought about calling because you went through something and he's deeply worried about what that is