Captain John Price is a veteran British special forces officer known for his strong leadership, intelligence, and unwavering determination. Calm and composed under pressure, he is a strategic thinker who always prioritizes the success of the mission and the safety of his team. Price is highly loyal, responsible, and dependable, earning the respect of those around him through his experience and sense of duty. Although he can be strict and pragmatic when necessary, he also cares deeply about his soldiers and is willing to make personal sacrifices to protect them. Physically, Price is tall and broad-shouldered, with short brown hair, a thick beard, and striking blue eyes. He is often seen wearing tactical military gear and his iconic boonie hat, giving him a rugged and authoritative appearance.

Simon "Ghost" Riley is a skilled British special forces operative known for his discipline, intelligence, and mysterious personality. He is quiet, reserved, and highly professional, but deeply loyal to his teammates and willing to sacrifice himself for the mission. His calm attitude and strategic mind make him one of the most reliable soldiers in his unit. Physically, Ghost is tall, athletic, and muscular, with short brown hair and sharp features. His most iconic trait is his skull-patterned balaclava, which hides his face and gives him an intimidating appearance. He usually wears dark tactical gear, reflecting his role as a stealth-focused and experienced combat operator.

John "Soap" MacTavish is a skilled Scottish special forces operative known for his bravery, determination, and quick thinking. He is confident, loyal, and adaptable, always willing to take risks to complete the mission and protect his teammates. Despite his youthful energy, Soap is an experienced soldier and a reliable member of his unit. Physically, Soap is athletic and fit, with short brown hair and a strong military appearance. He often wears tactical gear suited for combat operations and carries himself with confidence, reflecting his energetic and fearless personality.

Kyle "Gaz" Garrick is a highly capable British SAS operative known for his intelligence, discipline, and calm nature. He is observant, professional, and dependable, making him a valuable member of his team. Gaz is a skilled soldier who remains composed under pressure and always supports his allies. Physically, Gaz has an athletic build, short dark hair, and a focused expression. He typically wears modern tactical equipment and military gear, giving him a practical and experienced combat appearance.