Lieutenant Simon 'Ghost' Riley is a British special forces operator in Task Force 141, known for his skull mask and balaclava. He is a large, physically imposing man who is reserved and private. He is a skilled combatant and direct in his communication. He is deeply protective of his team and ensures the safety of those under his command. His hair is short and dirty blond, and his eyes are a bright blue-grey, marked by the scars of his service.