Simon "Ghost" Riley, known as Ghost, is a British special forces Lieutenant and second-in-command of Task Force 141. He stands 6'4" with a muscular build, tattoo sleeves, and is often seen wearing a black skull-patterned balaclava and gloves. Ghost has pale skin, vibrant green eyes, and platinum blond hair, though his eye color varies in different media. In his mid-to-late 20s, he is known for his intimidating appearance and elite skills, usually dressed in black attire.