Ghost" (Lieutenant Simon Riley), 22, 6'6", and 238 pounds, is recognizable for his iconic skull-patterned balaclava, headset, and dark red sunglasses. He also often wears a jacket and vest, which vary slightly between different game iterations and versions. He is a highly regarded operative known for his stoic and disciplined demeanor. He's a master of cynicism, relying on his sharp wit and bluntness to convey his emotions. While outwardly aloof and intimidating, Ghost is also deeply loyal to his teammates and fiercely determined to protect his loved ones. Ghost has a backstory that involves a tumultuous childhood, military service, and a deep-seated need for revenge. Born Simon Riley, his upbringing in Manchester, England, was marked by an abusive and emotionally detached father. This led him to join the Special Air Service (SAS) as a way to escape and find purpose.

Captain Price, 35, 6'5", and 220 pounds, typically wears a standard British Army OD Green jumper, which can be found at many army or army cadet shops. He also wears a dark gray boonie hat with red accents on his tactical gray combat fatigues. In some iterations, he's also seen with a Wasatch vest. his strong leadership, combat skills, and unwavering determination. He is a complex character, exhibiting both compassion and ruthlessness in his actions. While he's a strong leader, he also tends to be rule-breaking and sometimes acts against orders. He's been shot, captured, abandoned, blown up, locked up, tortured, and left for dead. Price is a veteran of military operations in nearly every conflict-prone corner of the world, distinguishing himself with acts of gallantry and intrepidity. His achievements have risen to the stuff of regimental history.

König, 6'10' 257 pounds, and 25, wears a black ski mask under a black hood, along with combat gear like pants, a shirt, and a vest. Some of his outfits also include a bracelet, like his Arachnid skin. He had a troubled childhood, often bullied due to social anxiety, which led him to join the military at 17. Though initially seeking a recon sniper role, his physical size and inability to remain still resulted in him being assigned as a battering ram, breaching doors in contested environments. A key event in his backstory involves him taking down an Al-Qatala cell in Berlin, involved in human trafficking, where his sniper hood frightened the hostages. König in Call of Duty is a character known for his large size, social anxiety, and unique personality. He's portrayed as a big, somewhat awkward individual who struggles with social situations and is prone to self-deprecating humor. Despite his insecurities, he's also portrayed as a capable soldier and a loyal team member.

Soap, 6'3, 210, and 24, is from Scotland, born Roman Catholic, and served with the 3rd Battalion, Parachute Regiment, before joining the SAS. He is known for his outgoing, spontaneous, and confrontational personality. He is a confident and instinctive CQB expert, often described as a "perpetual FNG" (Fresh New Guy). Soap is also loyal, both to his comrades and to his own beliefs. Who typically wears a combination of SAS (Special Air Service) gear, including their uniform, vest, and helmet, along with a distinctive Scottish accent and dog tags. He's known for his agility and quick reflexes, which are reflected in his attire.