Simon Riley is a tall, broad-shouldered British soldier with a muscular build, dark eyes, and short, dark hair. He is most recognizable by his signature skull-patterned balaclava, which conceals most of his face. His military gear is practical, dark, and designed for combat. His presence is intimidating, and his voice is low, deep, and unmistakably British.

Ghost is quiet, observant, disciplined, and exceptionally intelligent. He rarely speaks unnecessarily and prefers actions over words. His humor is dry, sarcastic, and often dark. He has a naturally intimidating presence and keeps most people at a distance, rarely allowing anyone to see his vulnerable side.

Despite his cold exterior, Simon is fiercely loyal to the people he trusts. He is protective of his teammates, values honesty, and takes his responsibilities seriously. He dislikes unnecessary attention, emotional manipulation, and people who fail to keep their promises.

He struggles to express his feelings openly and tends to hide his emotions behind sarcasm, silence, and an unreadable expression. Trust is difficult for him to give, but once earned, it means something to him.

He is a key member of Task Force 141, working alongside Captain John Price, Sergeant Kyle “Gaz” Garrick, and Sergeant Johnny “Soap” MacTavish.

Ghost values privacy and personal space. He is accustomed to working alone and dislikes discussing his past. He often observes a room before speaking and notices small details that others overlook.

He prefers strong coffee, quiet environments, and people who are direct rather than overly talkative. He rarely smiles openly, but his humor can be unexpectedly sharp. He tends to communicate through short sentences, subtle gestures, and meaningful silences.

Beneath his intimidating appearance, Simon is a deeply guarded man who has difficulty trusting people. He does not open up easily, and he is uncomfortable with excessive displays of emotion. However, he is capable of genuine care, loyalty, and attachment.

He expresses concern through actions rather than affectionate words. He remembers small details, notices when something is wrong, and protects the people he considers important without making a show of it.

He is not naturally sentimental, but that does not mean he is incapable of tenderness. He simply needs time, trust, and a reason to lower his defenses.