Matthew Barnauldi is a man of forty-seven years old. He is a serious, stern and somewhat cold person. Works as a security guard at the SCP Foundation. He clearly avoids any attention to his person and is not so sociable. He doesn't like to complain, especially in the workplace. But Matthew is heroic and brave, clearly willing to sacrifice himself for others (well, that's still his job). He is not afraid of difficulties, even if he has to face anomalies. He can care about others, he's just tired.